Ecology: Chapters Worksheet

Size: px
Start display at page:

Download "Ecology: Chapters Worksheet"

Transcription

1 Ecology: Chapters Worksheet Name: Chapter 34: The Biosphere Concept 34.1 The biosphere is the global ecosystem. (pp ) The scientific study of the interactions among organisms and between organisms and their environments is called ecology. Ecologists study the relationships among biotic and abiotic factors. All the living organisms in the environment are called biotic factors. The nonliving physical and chemical conditions are called abiotic factors. Ecologists conduct studies at five increasingly larger levels: individual organisms, populations, communities, ecosystems, and the biosphere. A population is a group of organisms of the same species living in a particular area. A community is made up of all of the organisms living in a particular area. An ecosystem is made up of the abiotic factors and the biotic factors in an area. The biosphere includes all of Earth s ecosystems. The biosphere is patchy a particular area may contain an uneven distribution of different ecosystems. This patchiness creates different habitats, or specific environments in which organisms live. Each habitat has characteristic abiotic and biotic factors. Abiotic factors that define different habitats include amount of sunlight, availability of water, temperature, soil type, wind, and number and type of disturbances. Major natural disturbances that affect ecosystems include fires, hurricanes, tornadoes, and volcanic eruptions. 1. What are the five levels of ecological study? 2. What are habitats, and what creates habitats? 3. Distinguish biotic factors from abiotic factors. Concept 34.2 Climate determines global patterns in the biosphere. (pp ) The climate of a region mostly determines the type of ecosystem found there. Earth s climates are mainly produced by the uneven heating of Earth by the sun. Different locations on Earth s surface receive different amounts of solar energy. As a result, Earth s surface can be divided into different temperature zones based on lines of latitude. The region that lies between 23.5 N latitude and 23.5 S latitude, called the tropics, is the warmest temperature zone. The region north of the Arctic Circle and the region south of the Antarctic Circle, called the polar zones, are the coldest temperature zones. The latitudes between the tropics and the polar zones, called the temperate zones, experience less extreme heat and cold. The uneven heating of Earth s surface also affects global patterns of winds and precipitation. When air is warmed it can absorb more moisture, and it tends to rise. The rising and falling of air masses, combined with Earth s rotation, produce predictable wind patterns. These wind patterns produce surface currents in the oceans. A current is a river-like flow pattern within a body of water. Surface currents can greatly affect the climates of land areas. Large bodies of water may create variations in local climates. Mountains also affect local climates. Specific locations in a climate region may be exposed to different conditions created by shade, snow cover, or windbreaks. Such small-scale differences in climate result in a microclimate, a climate in a specific area that varies from the surrounding climate region. 4. What produces surface currents in the ocean? 5. What creates a microclimate? Concept 34.3 Biomes are the major types of terrestrial ecosystems. (pp ) The major types of terrestrial ecosystems that cover large regions of Earth are called biomes. Each biome has typical communities of organisms that are adapted to its climate and other abiotic factors. There are eight major biomes: tropical forest, savanna, desert, chaparral, temperate grassland, temperate deciduous forest, coniferous forest, and tundra. Tropical forests occur near the equator where temperatures are warm year-round. One type of tropical forest is the tropical rain forest, which can receive as much as 350 centimeters of rainfall yearly. Of all the biomes, tropical rain forests have the greatest diversity of life. A savanna is a grassland with scattered trees. Deserts are land areas that receive less than 30 centimeters of rain per year. The chaparral is a temperate coastal biome dominated by dense evergreen shrubs. The temperate grassland has deep, nutrient-rich soil that supports a variety of grass species and other plants. The temperate deciduous forest has dense stands of deciduous trees trees that drop their leaves each year. The coniferous forest has

2 towering cone-bearing evergreen trees such as pines and firs. The tundra has bitterly cold temperatures and high winds. The permanently frozen subsoil of the tundra is called permafrost. 6. In what ways does each biome differ from the other biomes? 7. How do the biotic factors of a savanna differ from those of a chaparral? Concept 34.4 Aquatic ecosystems make up most of the biosphere. (pp ) Major abiotic factors that affect aquatic (water) ecosystems include the amount of dissolved salt in the water, the temperature of the water, and the availability of sunlight (how much sunlight reaches into the water). Freshwater ecosystems include bodies of water with very little dissolved salt, such as ponds, lakes, streams, and rivers. Lakes and large ponds are divided into zones. The photic zone, in which light is available for photosynthesis, includes the shallow water close to shore and the upper zone of water away from shore. Organisms in the photic zone include water plants and phytoplankton, microscopic algae and bacteria that carry out photosynthesis. The deep areas of a lake, where light levels are low, are called the aphotic zone. The bottom of any aquatic ecosystem is called the benthic zone. A body of flowing fresh water is known as a river or a stream. An area where a stream or river mixes with ocean water is called an estuary. The ocean is also divided into different zones. Zones based on depth include the benthic zone the ocean floor and the pelagic zone the open ocean above the ocean floor. Like a lake, the ocean has a photic zone and an aphotic zone. The area of shore between the high-tide and low-tide lines is called the intertidal zone. The area of the ocean from the low-tide line out to the edge of the continental shelf is the neritic zone. The vast ocean beyond the edge of the continental shelf is called the oceanic zone. Organisms that live in the photic oceanic zone include phytoplankton and zooplankton, or microscopic animals. Coral reefs formed by colonies of coral animals are mostly found in the ocean s neritic zone. In the deep ocean, many unfamiliar species live around deep-sea hydrothermal vents. Hydrothermal vents are spots on the ocean floor where hot gases and minerals escape from Earth s interior into the water. Vent communities use the chemical energy from Earth s interior rather than sunlight as their energy source. 8. Explain why phytoplankton live in the photic zone rather than the aphotic zone. 9. What abiotic factors characterize a hydrothermal vent? Chapter 35: Population and Community Ecology Concept 35.1 A population is a local group of organisms of one species. (pp ) Members of the same species living in a specific area make up a population. For example, all the alligators in a swamp make up a population. The size of a population can change over time. Factors that affect a population s size include the availability of food and space, weather conditions, and breeding patterns. Ecologists often calculate population density, or the number of individuals of a particular species in a given unit of area or volume. For example, a population of 1000 birch trees in a forest measuring 50 square kilometers (km 2 ) has a population density of 1000 birches/50 km 2. In most cases, it is too difficult to directly count every member of a population. Instead, scientists use sampling techniques to estimate the population s size. These techniques include quadrats, indirect counting, and the mark-recapture method. All of these techniques involve making some assumptions about the population. These assumptions affect how accurate the estimate is. 10. How do biologists define a population? 11. Contrast the terms population density and population. 12. List three methods of sampling.

3 Concept 35.2 There are limits to population growth. (pp ) A population s growth depends partly on how quickly its members reproduce. For example, bacteria can reproduce as often as every 20 minutes. In contrast, elephants reproduce only every few years. With unlimited food, space, and water, a population may undergo exponential growth, in which the population multiplies by a constant factor at constant time intervals. This growth pattern resembles a J-shaped curve when graphed. In nature, however, one or more limiting factors usually slow a population s growth. When such a factor limits a population s growth, the population has reached its carrying capacity. This growth pattern resembles an S-shaped curve when graphed. Some limiting factors, such as disease, are density-dependent factors, meaning they limit a population more as population density increases. Other factors, such as fires or storms, are unrelated to population density and are called density-independent factors. Some populations grow in boomor-bust cycles consisting of periods of rapid growth followed by rapid decreases. 13. Under what conditions might a population undergo exponential growth? 14. Give an example of a density-dependent limiting factor and an example of a density-independent limiting factor. Concept 35.3 Biologists are trying to predict the impact of human population growth. (pp ) For thousands of years, the human population grew very slowly. But starting in about 1650 C.E., the human population has grown so rapidly that it resembles exponential growth. The reasons for this rapid growth include improvements in nutrition, sanitation, and health care. These factors have enabled more people to live longer and have healthy offspring. Scientists use many models to predict future growth. Some predictions are based on age structure, or the proportion of people in different age groups in a population. An age-structure graph shows these proportions on a bar graph. There is much debate about human population predictions and about the possible impact of continued growth on Earth s resources. 15. What are some reasons that the growth rate of the human population increased dramatically after about 1650 C.E.? 16. What is an age-structure graph? Concept 35.4 Species interact in biological communities. (pp ) A community is a group of species living in the same geographic area. Interspecific competition occurs when two or more species rely on the same limited resource, such as grass for grazing. In some situations, competition may result in one species succeeding over another, which is a process called competitive exclusion. Within a community, each species has a unique niche that includes its living place, its food sources, the time of day it is active, and other aspects of its way of life. Species within a community interact in different ways. In predation, one organism (the predator) eats another organism (the prey). Symbiotic relationships are close interactions in which one species lives on or in the other. In parasitism, one organism (the parasite) obtains its food at the expense of another organism (the host). In mutualism, both organisms benefit from the close interaction. In commensalism, one organism benefits while the other is neither harmed nor helped significantly. 17. Are species that occupy different niches likely to compete? Explain. 18. How is a symbiotic relationship different from predation? Concept 35.5 Disturbances are common in communities. (pp ) Communities tend to be constantly changing. Some disturbances are natural, such as volcanic eruptions and storms. Other disturbances are caused by human activities, such as clearing a forest. Some disturbances have positive effects, such as providing new habitats. Others have negative effects, such as destroying food sources or nesting areas. A significant disturbance may result in a process of community change called ecological succession. The appearance of a new community in an area with no soil, such as on a newly formed island, is called primary succession. The change in a community after a disturbance that leaves the soil intact, such as in an abandoned farm field, is called secondary succession. One human activity that often has a negative effect on existing communities is bringing introduced species to a new geographic area.

4 19. Give two examples of disturbances to a community. 20. Explain the term ecological succession. 21. How might an introduced species have a negative effect on a community? Chapter 36: Ecosystems and Conservation Biology Concept 36.1 Feeding relationships determine the path of energy and chemicals in ecosystems. (pp ) Energy flow through ecosystems begins with producers. Producers are generally photosynthetic organisms such as plants that convert light energy from sunlight to the chemical energy of organic compounds. Producers also include chemoautotrophs, prokaryotes that extract energy from inorganic compounds. Organisms called consumers obtain chemical energy by feeding on producers or on other consumers. Organisms called decomposers obtain energy by breaking down wastes and dead organisms. As organisms use chemical energy, they release thermal energy (heat). Thus, energy enters most ecosystems as sunlight and exits ecosystems as heat. In contrast, chemicals can be recycled between the living and nonliving parts of ecosystems and the biosphere. Both energy and chemicals move from one organism to the next as organisms feed. Each of the feeding organisms represents a trophic level in the ecosystem. The pathway of food transfer from one trophic level to another is called a food chain. In all food chains, producers make up the trophic level that supports all other levels. A consumer that eats only producers is an herbivore. A consumer that eats only other consumers is a carnivore. A consumer that eats both producers and consumers is an omnivore. When a consumer feeds directly on producers it is called a primary consumer. Secondary consumers eat primary consumers. Tertiary consumers eat secondary consumers. Decomposers are consumers that feed on detritus, the wastes and remains of dead organisms. Consumers usually have many food sources. The pattern made by interconnected and branching food chains is a food web. 22. How is the flow of energy through ecosystems different from the flow of chemicals through ecosystems? 23. How is a food web different from a food chain? Concept 36.2 Energy flows through ecosystems. (pp ) Because there is a limited amount of energy in an ecosystem, energy is divided among the different trophic levels. This energy budget influences the types and numbers of organisms in an ecosystem. The producers store chemical energy in organic material, or biomass. The rate at which producers in an ecosystem build biomass is called primary productivity. Primary productivity determines the maximum amount of energy available to the higher trophic levels in an ecosystem. Energy is spent at each step in a food web. Ecologists use three types of diagrams to depict information about energy, biomass, and number of organisms at different trophic levels. An energy pyramid depicts the energy loss from one trophic level to the next. In general, an average of only 10 percent of available energy at a trophic level is converted to biomass at the next higher trophic level. A biomass pyramid depicts the actual biomass (dry mass of all organisms) in each trophic level. A pyramid of numbers depicts the number of individual in each trophic level. 24. How is primary productivity related to biomass? 25. What does each type of ecological pyramid depict? Concept 36.3 Chemicals cycle in ecosystems. (pp ) Chemical cycles typically involve three general steps. First, producers use chemicals from the nonliving environment to make organic compounds. Second, as consumers feed on producers, they take chemicals into their bodies and release some

5 back into the environment as waste. Third, decomposers break down dead organisms, returning inorganic chemicals to the soil, water, and air. Producers can then use these chemicals to make organic compounds, continuing the cycle. In the carbon and oxygen cycle, producers use carbon dioxide in the air or water and release oxygen as they make organic compounds through photosynthesis. Consumers, which eat the organic compounds, use oxygen and release carbon dioxide during cellular respiration. In the nitrogen cycle, certain types of bacteria convert nitrogen gas in the air to ammonia through a process called nitrogen fixation. These bacteria live in the soil and on the roots of certain plants. In soil, the ammonia forms ammonium. Other soil bacteria then convert ammonium to nitrates in a process called nitrification. Ammonium and nitrates move through the food webs, and nitrogen gas is eventually released back into the air. In the water cycle, three major processes move water between the land, bodies of water, and the atmosphere: evaporation, condensation, and precipitation (rain, snow, hail, and sleet). A large amount of water exits plants during transpiration, evaporation from a plant s leaves. 26. How are bacteria involved in the nitrogen cycle? 27. What are the three major processes that move water through the water cycle? Concept 36.4 Human activities can alter ecosystems. (pp ) Human activities can greatly affect chemical cycles. For example, the burning of fossil fuels adds carbon dioxide to the atmosphere. The carbon cycle is also affected by deforestation, the clearing of forests for agriculture, lumber, and other uses. Deforestation clears away plants that absorb carbon dioxide during photosynthesis. The burning of trees during deforestation releases carbon dioxide into the atmosphere. Gases such as carbon dioxide trap the sun s heat in the atmosphere through a process called the greenhouse effect. As levels of carbon dioxide in the atmosphere rise, more heat is trapped, and the average temperature rises. Such an overall rise in Earth s average temperature is called global warming. Human activities impact the nitrogen cycle mostly by moving large amounts of nitrogen compounds into the water or air. For example, fertilizers applied to crops are one source of nitrogen compounds in water. High levels of nitrogen in water can cause the rapid growth of algae, a condition called eutrophication. Bacteria that decompose the algae use so much oxygen that there is not enough oxygen left for other organisms to live. Other human activities, such as driving cars, release nitrogen and sulfur compounds into the atmosphere. These compounds form acids with the water vapor in the atmosphere. The precipitation that carries these acids back to Earth s surface is called acid rain. Acid rain causes damage to the environment. Human activities can also impact the water cycle. For example, humans can use water faster than the water cycle can replace it, causing rivers and underground water sources to run dry. The addition of substances to the environment that result in a negative effect is called pollution. Pollution can affect food chains. For example, pollutants become more concentrated from one trophic level to the next in a food web in a process called biological magnification. Pollutants can also affect the atmosphere. For example, some pollution affects a gas called ozone (O 3 ), which absorbs ultraviolet light. The result is damage to the ozone layer, a region high above Earth s surface that shields organisms from the sun s damaging effects. 28. How does deforestation affect the carbon cycle? 29. How does pollution cause acid rain? Concept 36.5 Conservation biology can slow the loss of biodiversity. (pp ) Biodiversity is the variety of life on Earth. Biodiversity includes the genetic variety among individuals in a species, the number of species in an ecosystem, and the variety of ecosystems in the biosphere. One reason that biodiversity matters is that many of the species in an ecosystem are interconnected. If a key species disappears, the health of the whole ecosystem may be affected. There is currently a period of mass extinction taking place on Earth. The main factors causing this threat to biodiversity are pollution, habitat destruction, introduced species, and overexploitation. Overexploitation is the practice of harvesting or hunting to such a degree that few remaining individuals may not be able to reproduce the population. The field of conservation biology uses knowledge of biology to counter the loss of biodiversity. Conservation biologists often focus on hot spots, small geographic areas with large numbers of species. They also try to understand an organism s habitat and try to find a balance in the demands for resources. One way for nations to protect ecosystems is to establish zoned reserves, undisturbed areas of land that are surrounded by buffer zones, areas with

6 little human impact. Many nations and private foundations are working toward a goal of sustainable development developing natural resources so that they can renew themselves and be available for the future. 30. What is one reason biodiversity is important? 31. How does overexploitation threaten biodiversity? 32. What are four approaches conservation biologists use in conserving biodiversity?

Unit 2: Ecology. Chapters 2: Principles of Ecology

Unit 2: Ecology. Chapters 2: Principles of Ecology Unit 2: Ecology Chapters 2: Principles of Ecology Ecology Probe: Answer the questions and turn it in! This is a standard aquarium with a population of fish. There is no filter in this aquarium and no one

More information

What is ECOLOGY? The study of the biotic and abiotic factors in an environment and their interactions.

What is ECOLOGY? The study of the biotic and abiotic factors in an environment and their interactions. Ecology What is ECOLOGY? The study of the biotic and abiotic factors in an environment and their interactions. Biotic Factors Living things in the environment. Animals Plants Fungi Protists Bacteria Abiotic

More information

Chapter Introduction. Matter. Ecosystems. Chapter Wrap-Up

Chapter Introduction. Matter. Ecosystems. Chapter Wrap-Up Chapter Introduction Lesson 1 Lesson 2 Lesson 3 Abiotic Factors Cycles of Matter Chapter Wrap-Up Energy in Ecosystems How do living things and the nonliving parts of the environment interact? What do you

More information

Ecosystems Section 1 What Is an Ecosystem? Objectives Distinguish Describe Sequence Interactions of Organisms and Their Environment Ecology Habitat

Ecosystems Section 1 What Is an Ecosystem? Objectives Distinguish Describe Sequence Interactions of Organisms and Their Environment Ecology Habitat Name Period Ecosystems Section 1 What Is an Ecosystem? Objectives Distinguish an ecosystem from a community. Describe the diversity of a representative ecosystem. Sequence the process of succession. Interactions

More information

Aquatic Communities Aquatic communities can be classified as freshwater

Aquatic Communities Aquatic communities can be classified as freshwater Aquatic Communities Aquatic communities can be classified as freshwater or saltwater. The two sets of communities interact and are joined by the water cycle. Gravity eventually returns all fresh water

More information

Ecology, the Environment, and Us

Ecology, the Environment, and Us BIOLOGY OF HUMANS Concepts, Applications, and Issues Fifth Edition Judith Goodenough Betty McGuire 23 Ecology, the Environment, and Us Lecture Presentation Anne Gasc Hawaii Pacific University and University

More information

Climate: describes the average condition, including temperature and precipitation, over long periods in a given area

Climate: describes the average condition, including temperature and precipitation, over long periods in a given area Ch. 6 - Biomes Section 6.1: Defining Biomes Biome: a group of ecosystems that share similar biotic and abiotic conditions, large region characterized by a specific type of climate, plants, and animals

More information

ANSWER KEY - Ecology Review Packet

ANSWER KEY - Ecology Review Packet ANSWER KEY - Ecology Review Packet OBJECTIVE 1: Ecosystem Structure 1. What is the definition of an abiotic factor? Give one example. A nonliving part of an ecosystem. Example: water 2. What is the definition

More information

Chapter 3 Ecosystem Ecology. Tuesday, September 19, 17

Chapter 3 Ecosystem Ecology. Tuesday, September 19, 17 Chapter 3 Ecosystem Ecology Reversing Deforestation in Haiti Answers the following: Why is deforestation in Haiti so common? What the negative impacts of deforestation? Name three actions intended counteract

More information

Principles of Ecology

Principles of Ecology Principles of Ecology 1 Keystone Anchors Describe ecological levels of organization in the biosphere. o Describe the levels of ecological organization (i.e., organism, population, community, ecosystem,

More information

Keystone Biology Remediation B4: Ecology

Keystone Biology Remediation B4: Ecology Keystone Biology Remediation B4: Ecology Assessment Anchors: to describe the levels of ecological organization (i.e. organism, population, community, ecosystem, biome, biosphere) (B.4.1.1) to describe

More information

Chapter 2. Table of Contents. Section 1 Organisms and Their Releationships. Section 2 Flow of Energy in an Ecosystem. Section 3 Cycling of Matter

Chapter 2. Table of Contents. Section 1 Organisms and Their Releationships. Section 2 Flow of Energy in an Ecosystem. Section 3 Cycling of Matter Ecosystems Table of Contents Section 1 Organisms and Their Releationships Section 2 Flow of Energy in an Ecosystem Section 3 Cycling of Matter Section 1 Organisms and Their Releationships Interactions

More information

Slide 1 / All of Earth's water, land, and atmosphere within which life exists is known as a. Population Community Biome Biosphere

Slide 1 / All of Earth's water, land, and atmosphere within which life exists is known as a. Population Community Biome Biosphere Slide 1 / 40 1 ll of Earth's water, land, and atmosphere within which life exists is known as a Population ommunity iome iosphere Slide 2 / 40 2 ll the plants, animals, fungi living in a pond make up a

More information

Chapter 4: Ecosystems & Communities

Chapter 4: Ecosystems & Communities Chapter 4: Ecosystems & Communities Section 4.1 The Role of Climate In Earth s atmosphere, temperature, precipitation, and other environmental factors combine to produce weather and climate. Weather is

More information

WHAT IS ECOLOGY? Ecology- the scientific study of interactions between organisms and their environments, focusing on energy transfer

WHAT IS ECOLOGY? Ecology- the scientific study of interactions between organisms and their environments, focusing on energy transfer Ecology WHAT IS ECOLOGY? Ecology- the scientific study of interactions between organisms and their environments, focusing on energy transfer Ecology is a science of relationships WHAT DO YOU MEAN BY ENVIRONMENT?

More information

ECOSYSTEMS. Follow along in chapter 54. *Means less important

ECOSYSTEMS. Follow along in chapter 54. *Means less important ECOSYSTEMS Follow along in chapter 54 *Means less important How do ecosystems function? What is an ecosystem? All living things in an area and their abiotic environment Ecosystem function can be easily

More information

Chapter 3 The Biosphere. Section Objectives:

Chapter 3 The Biosphere. Section Objectives: Chapter 3 The Biosphere Section Objectives: Distinguish between the biotic and abiotic factors in the environment. Compare the different levels of biological organization and living relationships important

More information

Principles of Ecology

Principles of Ecology Principles of Ecology Ecology Study of interactions that take place between organisms and their environments Living things are affected by nonliving and living parts of the environment Abiotic factors:

More information

The nitrogen cycle is an example of a. carbohydrate cycle c. hydrologic cycle b. atmospheric cycle d. sedimentary cycle

The nitrogen cycle is an example of a. carbohydrate cycle c. hydrologic cycle b. atmospheric cycle d. sedimentary cycle Environmental Science Semester Exam Study Guide Chapter 4: Ecology 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Ecology is the study of how a. organisms interact with each other and their nonliving environment b.

More information

What is Ecology? The study of the interactions between organisms and the living (biotic) and nonliving (abiotic) components of their environment.

What is Ecology? The study of the interactions between organisms and the living (biotic) and nonliving (abiotic) components of their environment. Chapter 18 What is Ecology? The study of the interactions between organisms and the living (biotic) and nonliving (abiotic) components of their environment. What is Biodiversity? Biodiversity is the sum

More information

BIOMES. Living World

BIOMES. Living World BIOMES Living World Biomes Biomes are large regions of the world with distinctive climate, wildlife and vegetation. They are divided by terrestrial (land) or aquatic biomes. Terrestrial Biomes Terrestrial

More information

Chapter 5: How Ecosystems Work Section 1, Energy Flow in Ecosystems

Chapter 5: How Ecosystems Work Section 1, Energy Flow in Ecosystems Life Depends on the Sun Chapter 5: How Ecosystems Work Section 1, Energy Flow in Ecosystems Energy from the sun enters an ecosystem when plants use sunlight to make sugar molecules. This happens through

More information

Biology Ecology Unit Chapter 2 Study Guide

Biology Ecology Unit Chapter 2 Study Guide Name: Date: Block: Biology Ecology Unit Chapter 2 Study Guide 1. Directions: Use each of the terms below just once to complete the passage. Ecology Biotic factors Nonliving Environments Atmosphere Humans

More information

15.1 Life in the Earth System. KEY CONCEPT The biosphere is one of Earth s four interconnected systems.

15.1 Life in the Earth System. KEY CONCEPT The biosphere is one of Earth s four interconnected systems. 15.1 Life in the Earth System KEY CONCEPT The biosphere is one of Earth s four interconnected systems. 15.1 Life in the Earth System The biosphere is the portion of Earth that is inhabited by life. The

More information

Cycles of Ma,er. Lesson Overview. Lesson Overview. 3.4 Cycles of Matter

Cycles of Ma,er. Lesson Overview. Lesson Overview. 3.4 Cycles of Matter Lesson Overview Cycles of Ma,er Lesson Overview 3.4 Cycles of Matter THINK ABOUT IT A handful of elements combine to form the building blocks of all known organisms. Organisms cannot manufacture these

More information

Ecology Part 2: How Ecosystems Work

Ecology Part 2: How Ecosystems Work Ecology Part 2: How Ecosystems Work Name: Unit 2 1 In this second part of Unit 2, our big idea questions are: SECTION 1 How is energy transferred from the Sun to producers and then to consumers? Why do

More information

Niche and Habitat a species plays in a community. What it does all

Niche and Habitat a species plays in a community. What it does all Ecosystem Dynamics What is ecology? Study of the interactions between parts of the environment Connections in nature Abiotic: soil comp. Biotic: and Abiotic and Biotic factors factors in the environment

More information

Ecology: The Flow of Matter and Energy In An Ecosystem. - the scientific of between and their, focusing on transfer

Ecology: The Flow of Matter and Energy In An Ecosystem. - the scientific of between and their, focusing on transfer Ecology: The Flow of Matter and Energy In An Ecosystem PS 12: Matter cycles and energy flows through living and nonliving components in ecosystems. The transfer of matter and energy is important for maintaining

More information

Ecology. - Air pollutants (Sulfur and Nitrogen) mix with water in the atmosphere - This rain destroys wildlife and habitats

Ecology. - Air pollutants (Sulfur and Nitrogen) mix with water in the atmosphere - This rain destroys wildlife and habitats Ecology Study online at quizlet.com/_2dqy57 1. Acid Rain 7. Ozone Layer Depletion - Air pollutants (Sulfur and Nitrogen) mix with water in the atmosphere - This rain destroys wildlife and habitats 2. Exotic

More information

How Ecosystems Work Section 1. Chapter 5 How Ecosystems Work Section 1: Energy Flow in Ecosystems DAY 1

How Ecosystems Work Section 1. Chapter 5 How Ecosystems Work Section 1: Energy Flow in Ecosystems DAY 1 Chapter 5 How Ecosystems Work Section 1: Energy Flow in Ecosystems DAY 1 Life Depends on the Sun Energy from the sun enters an ecosystem when plants use sunlight to make sugar molecules. This happens through

More information

1. The diagram below represents many species of plants and animals and their surroundings.

1. The diagram below represents many species of plants and animals and their surroundings. 1. The diagram below represents many species of plants and animals and their surroundings. 4. Which statement most accurately predicts what would happen in the aquarium shown below if it were tightly covered

More information

WHAT IS ECOLOGY? Ecology- the scientific study of interactions between organisms and their environments, focusing on energy transfer

WHAT IS ECOLOGY? Ecology- the scientific study of interactions between organisms and their environments, focusing on energy transfer More Ecology WHAT IS ECOLOGY? Ecology- the scientific study of interactions between organisms and their environments, focusing on energy transfer Ecology is a science of relationships WHAT DO YOU MEAN

More information

Chapter 13 Principles of Ecology Lecture Guide, Day 1

Chapter 13 Principles of Ecology Lecture Guide, Day 1 Chapter 13 Principles of Ecology Lecture Guide, Day 1 What is Ecology? It is the scientific study of interactions among organisms and between organisms or surroundings. The Nonliving Environment - Abiotic

More information

Climate and Biodiversity

Climate and Biodiversity LIVING IN THE ENVIRONMENT, 18e G. TYLER MILLER SCOTT E. SPOOLMAN 7 Climate and Biodiversity Core Case Study: A Temperate Deciduous Forest Why do forests grow in some areas and not others? Climate Tropical

More information

Chapter 36: Population Growth

Chapter 36: Population Growth Chapter 36: Population Growth Population: Population Concepts interbreeding group of same species Carrying Capacity: maximum population size an ecosystem can sustainably support Critical Number: minimum

More information

Name Class Date. In the space provided, write the letter of the description that best matches the term or phrase.

Name Class Date. In the space provided, write the letter of the description that best matches the term or phrase. Skills Worksheet Directed Reading Section: What Is an Ecosystem? In the space provided, write the letter of the description that best matches the term or phrase. 1. ecology 2. habitat 3. community 4. ecosystem

More information

Chapter 3: Communities, Biomes, and Ecosystems

Chapter 3: Communities, Biomes, and Ecosystems Chapter 3: Communities, Biomes, and Ecosystems How would you describe your Community? Did you include your family and friends? Did you include your school? Did you include plants and animals? A biological

More information

Chapter 34. The Biosphere: An introduction to Earth s Diverse Environments

Chapter 34. The Biosphere: An introduction to Earth s Diverse Environments Chapter 34 The Biosphere: An introduction to Earth s Diverse Environments PowerPoint Lectures for Biology: Concepts & Connections, Sixth Edition Campbell, Reece, Taylor, Simon, and Dickey Copyright 2009

More information

The Biosphere. GETTING READY TO LEARN Preview Key Concepts 15.1 Life in the Earth System The biosphere is one of Earth s four interconnected systems.

The Biosphere. GETTING READY TO LEARN Preview Key Concepts 15.1 Life in the Earth System The biosphere is one of Earth s four interconnected systems. CHAPTER 15 The Biosphere GETTING READY TO LEARN Preview Key Concepts 15.1 Life in the Earth System The biosphere is one of Earth s four interconnected systems. 15.2 Climate Climate is a key abiotic factor

More information

Chapter 3 Ecosystem Ecology

Chapter 3 Ecosystem Ecology Chapter 3 Ecosystem Ecology Ecosystem Ecology Examines Interactions Between the Living and Non-Living World Ecosystem- A particular location on Earth distinguished by its particular mix of interacting

More information

Overview Interactions of Living Things

Overview Interactions of Living Things Directed Reading for Content Mastery Overview Interactions of Living Things Directions: Complete the concept map using the terms in the list below. air biotic soil communities water organisms populations

More information

Climates and Ecosystems

Climates and Ecosystems Chapter 2, Section World Geography Chapter 2 Climates and Ecosystems Copyright 2003 by Pearson Education, Inc., publishing as Prentice Hall, Upper Saddle River, NJ. All rights reserved. Chapter 2, Section

More information

How Ecosystems Work Section 1. Chapter 5 How Ecosystems Work Section 1: Energy Flow in Ecosystems DAY 1

How Ecosystems Work Section 1. Chapter 5 How Ecosystems Work Section 1: Energy Flow in Ecosystems DAY 1 Chapter 5 How Ecosystems Work Section 1: Energy Flow in Ecosystems DAY 1 Life Depends on the Sun Energy from the sun enters an ecosystem when plants use sunlight to make sugar molecules. This happens through

More information

1. All the interconnected feeding relationships in an ecosystem make up a food. a. Interaction b. Chain c. Network d. Web

1. All the interconnected feeding relationships in an ecosystem make up a food. a. Interaction b. Chain c. Network d. Web Ecology Unit Test DO NOT WRITE ON TEST!!! Take a deep breath, take your time, and make sure you understand exactly what the question is asking you. For true/false, fill in the correct bubble ( A for true

More information

The Law of Conservation of Matter. Matter cannot be created nor destroyed Matter only changes form There is no away

The Law of Conservation of Matter. Matter cannot be created nor destroyed Matter only changes form There is no away Review Items Ecosystem Structure The Law of Conservation of Matter Matter cannot be created nor destroyed Matter only changes form There is no away Laws Governing Energy Changes First Law of Thermodynamics

More information

Ecosystems and Biomes

Ecosystems and Biomes Content Vocabulary LESSON 1 Ecosystems and Biomes Directions: Use the clues and the terms listed below to complete the puzzle. NOTE: There is no empty square in the puzzle between the words of two-word

More information

The Earth s Ecosystems: Biomes, Energy Flow, and Change. I. Biomes and Ecosystems are divisions of the biosphere.

The Earth s Ecosystems: Biomes, Energy Flow, and Change. I. Biomes and Ecosystems are divisions of the biosphere. The Earth s Ecosystems: Biomes, Energy Flow, and Change I. Biomes and Ecosystems are divisions of the biosphere. A. Biomes: Biomes are the largest divisions of the biosphere. in other words biomes have

More information

Chapter 54. Ecosystems. PowerPoint Lectures for Biology, Seventh Edition. Neil Campbell and Jane Reece

Chapter 54. Ecosystems. PowerPoint Lectures for Biology, Seventh Edition. Neil Campbell and Jane Reece Chapter 54 Ecosystems PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece Overview: Ecosystems, Energy, and Matter An ecosystem consists of all the organisms living in a community,

More information

Unit 6: Ecosystems Module 15: Ecological Principles

Unit 6: Ecosystems Module 15: Ecological Principles Unit 6: Ecosystems Module 15: Ecological Principles NC Essential Standard: 2.1 Analyze the interdependence of living organisms within their environments Did you know The water you poop in today is the

More information

Water cycles through ecosystems.

Water cycles through ecosystems. Water cycles through ecosystems. Water is stored on Earth s surface in lakes, rivers, and oceans. Water is found underground, filling the spaces between soil particles and cracks in rocks. Large amounts

More information

Unsaved Test, Version: 1 1

Unsaved Test, Version: 1 1 Name: Key Concepts Select the term that best completes the statement. A. abiotic B. light C. biotic D. organisms E. ecology F. soil G. ecosystem H. temperature I. factors J. water Date: 1. A(n) is made

More information

Ecology: Part 2. Biology Mrs. Bradbury

Ecology: Part 2. Biology Mrs. Bradbury Ecology: Part 2 Biology Mrs. Bradbury Model 1: Food Chains Food Chain simple model showing the movement of matter and energy through ecosystems. Autotrophs Heterotrophs Decomposers Arrows show energy transfer

More information

Overview of Climate Science

Overview of Climate Science 1 Overview of Climate Science This overview of climate science is written to support the development of a K- 14 climate education plan for the Pacific Islands Climate Education Partnership (PCEP). It aims

More information

Autotrophs vs. Heterotrophs

Autotrophs vs. Heterotrophs How Ecosystems Work Autotrophs vs. Heterotrophs Autotrophs make their own food so they are called PRODUCERS Heterotrophs get their food from another source so they are called CONSUMERS Two Main forms of

More information

What determines a terrestrial. biome?

What determines a terrestrial. biome? BIOMES What determines a terrestrial Climate Temperature Precipitation Similarly adapted plants & animals Can vary depending on external forces- human disturbance Fire important to many Controls tree

More information

12. How could forest fire change populations in the ecosystem? Populations could be destroyed or have to relocate,

12. How could forest fire change populations in the ecosystem? Populations could be destroyed or have to relocate, Name: Ecology Review Sheet 15-16 Directions: This review should be completed by using your Interactive Notebook (IAN). This review is worth +5 points on your Ecology test, if it is completed and turned

More information

79. Cone- bearing trees are characteristic of the a) taiga. b) tropical rain forest. c) temperate deciduous forest. d) savanna.

79. Cone- bearing trees are characteristic of the a) taiga. b) tropical rain forest. c) temperate deciduous forest. d) savanna. 73. The portion of a species resource (biological, chemical, and physical) which a particular species actually utilizes is known as the: a) Reserve niche b) Conservation niche c) Basic niche d) Fundamental

More information

The Nonliving Environment

The Nonliving Environment Chapter Review The Nonliving Environment Part A. Vocabulary Review Directions: Write the correct term in the spaces beside each definition. Unscramble the boxed letters to find a word that describes a

More information

4. (Mark all that apply) Which one(s) of these are predators of the desert? a. Grizzly Bears b. Coyotes c. Road runners d. Badgers

4. (Mark all that apply) Which one(s) of these are predators of the desert? a. Grizzly Bears b. Coyotes c. Road runners d. Badgers School: Team Number: Competitor s Names: Score: /59 Ecology Test 1. (Mark all that apply) Which are limiting factors in a logistic growth model that results in a decreased biotic potential? a. Light, temperature,

More information

Downloaded from

Downloaded from Class X: Biology Chapter 15: Our environment Chapter Notes Key learning: 1) Our environment is composed of various biotic and abiotic factors which interact with each other. 2) Human activities have a

More information

Interactions Within Ecosystems. Date: P. in ILL

Interactions Within Ecosystems. Date: P. in ILL Interactions Within Ecosystems Date: P. in ILL Ecology the scientific study of interactions between different organisms their environment An ecologist would study organisms that live in an ecosystem. Ecosystems

More information

Human Biology. Chapter 23 Global Ecology and Human Interferences Lecture Outline. Sylvia S. Mader Michael Windelspecht

Human Biology. Chapter 23 Global Ecology and Human Interferences Lecture Outline. Sylvia S. Mader Michael Windelspecht Human Biology Sylvia S. Mader Michael Windelspecht Chapter 23 Global Ecology and Human Interferences Lecture Outline See separate FlexArt PowerPoint slides for all figures and tables pre-inserted into

More information

Dynamics of Ecosystems. Chapter 57

Dynamics of Ecosystems. Chapter 57 Dynamics of Ecosystems Chapter 57 1 The Water Cycle Nutrient Cycles Trophic Levels Primary Productivity Outline The Energy in Food Chains Ecological Pyramids Interactions Among Trophic Levels Species Richness

More information

Chapter 29. How Do Ecosystems Work? Lectures by Gregory Ahearn. Ammended by John Crocker. University of North Florida

Chapter 29. How Do Ecosystems Work? Lectures by Gregory Ahearn. Ammended by John Crocker. University of North Florida Chapter 29 How Do Ecosystems Work? Lectures by Gregory Ahearn University of North Florida Ammended by John Crocker Copyright 2009 Pearson Education, Inc.. 29.1 How Do Ecosystems Obtain Energy And Nutrients?

More information

Ecology the scientific study of interactions between different organisms and between organisms and their environment or surroundings

Ecology the scientific study of interactions between different organisms and between organisms and their environment or surroundings Ecology the scientific study of interactions between different organisms and between organisms and their environment or surroundings Biotic living factors that influence an ecosystem Abiotic non-living

More information

Study Online 4.3 Succession. Ecosystems change over time, especially after disturbances, as some species die out and new species move in.

Study Online 4.3 Succession. Ecosystems change over time, especially after disturbances, as some species die out and new species move in. Study Online 4.3 Succession Interdependence in Nature An organism s tolerance range for temperature, precipitation, and other abiotic factors helps determine where it lives. Biotic factors, such as competition,

More information

Matter and Energy in Ecosystems

Matter and Energy in Ecosystems Content Vocabulary LESSON 3 Matter and Energy in Ecosystems Directions: Complete the triangles below. In the bottom left section, write a definition for the term; include the word transfer in at least

More information

SCIENCE Grade 7 Standard: Earth & Space

SCIENCE Grade 7 Standard: Earth & Space Standard: Earth & Space Earth Systems C. Describe interactions of matter and energy throughout the lithosphere, hydrosphere, and atmosphere (e.g., water cycle, weather, and pollution). 1.a Explain the

More information

Levels of Ecological Organization. 1. The chart below shows three ecological terms used to describe levels of organization on Earth.

Levels of Ecological Organization. 1. The chart below shows three ecological terms used to describe levels of organization on Earth. Name Levels of Ecological Organization Date 1. The chart below shows three ecological terms used to describe levels of organization on Earth. Which diagram best represents the relationship of these ecological

More information

3 3 Cycles of Matter. EOC Review

3 3 Cycles of Matter. EOC Review EOC Review A freshwater plant is placed in a salt marsh. Predict the direction in which water will move across the plant s cell wall, and the effect of that movement on the plant. a. Water would move out

More information

Ecology is the study of interactions among organisms and between organisms and their physical environment

Ecology is the study of interactions among organisms and between organisms and their physical environment Chapter 3 and 4 Study Guide Ecology is the study of interactions among organisms and between organisms and their physical environment This includes both biotic and abiotic factors- biotic factors are living

More information

2018 ECOLOGY YEAR 2 (2018) PART ONE GENERAL PRINCIPLES OF ECOLOGY

2018 ECOLOGY YEAR 2 (2018) PART ONE GENERAL PRINCIPLES OF ECOLOGY 2018 ECOLOGY YEAR 2 (2018) PART ONE GENERAL PRINCIPLES OF ECOLOGY KAREN L. LANCOUR National Rules Committee Chairman Life Science DISCLAIMER - This presentation was prepared using draft rules. There may

More information

How Ecosystems Work: Energy Flow and Nutrient Cycles

How Ecosystems Work: Energy Flow and Nutrient Cycles How Ecosystems Work: Energy Flow and Nutrient Cycles Bubble in your ID and the answer to the 25 questions. You can look up the answers to these question on line. 1. The flow of solar energy through an

More information

Forest Biomes. Chapter 9

Forest Biomes. Chapter 9 Forest Biomes Chapter 9 9.1 Objectives ~Describe the characteristics of the coniferous forest. ~Explain adaptations that enable organisms to survive in coniferous forests. 9.1 Coniferous Forests Coniferous

More information

REVIEW 8: ECOLOGY UNIT. A. Top 10 If you learned anything from this unit, you should have learned:

REVIEW 8: ECOLOGY UNIT. A. Top 10 If you learned anything from this unit, you should have learned: Period Date REVIEW 8: ECOLOGY UNIT A. Top 10 If you learned anything from this unit, you should have learned: 1. Populations group of individuals of same species living in same area (size, density, distribution/dispersion)

More information

AP Environmental Science

AP Environmental Science AP Environmental Science Types of aquatic life zones MARINE Estuaries coral reefs mangrove swamps neritic zone pelagic zone FRESHWATER lakes and ponds streams and rivers wetlands Distribution of aquatic

More information

List the 5 levels of environmental organization, in order, from the lowest level to the highest level.

List the 5 levels of environmental organization, in order, from the lowest level to the highest level. ECOLOGY REVIEW 1 List the 5 levels of environmental organization, in order, from the lowest level to the highest level. 1 List the 5 levels of environmental organization, in order, the lowest level to

More information

What does each part of the equation mean? q=cm T

What does each part of the equation mean? q=cm T Assignment #10 Energy Pyramids LO: I can define trophic levels and explain the energy flow. I can apply those ideas to food webs EQ: Where does all the energy from the sun go? (4-5 sentences) LEVEL ZERO

More information

Biology/Honors Biology Fall Benchmark #2 Review Guide

Biology/Honors Biology Fall Benchmark #2 Review Guide Biology/Honors Biology Fall Benchmark #2 Review Guide Name CH 1: Science of Biology 1. Fill in the following table with parts of the scientific process. 2. What is the difference between an observation

More information

ENVIRONMENTAL BIOLOGY. Part 4

ENVIRONMENTAL BIOLOGY. Part 4 ENVIRONMENTAL BIOLOGY Part 4 Overview: A) THE BIOSPHERE B) POPULATION ECOLOGY C) COMMUNITY ECOLOGY D) ECOSYSTEM ECOLOGY E) THE CARBON & NITROGEN CYCLES F) ECOLOGICAL TECHNIQUES G) SIMPSON S RECIPROCAL

More information

Wake Acceleration Academy Earth & Environmental Science: Semester B Note Guide Unit 2: Earth s Changing Climate

Wake Acceleration Academy Earth & Environmental Science: Semester B Note Guide Unit 2: Earth s Changing Climate 1 Wake Acceleration Academy Earth & Environmental Science: Semester B Note Guide Unit 2: Earth s Changing Extra Resources Website: http://waa-science.weebly.com Module 1: The Mechanics of Change 1. What

More information

Earth as a System. Chapter 2. Table of Contents. Section 1 Earth: A Unique Planet. Section 2 Energy in the Earth System.

Earth as a System. Chapter 2. Table of Contents. Section 1 Earth: A Unique Planet. Section 2 Energy in the Earth System. Earth as a System Table of Contents Section 1 Earth: A Unique Planet Section 2 Energy in the Earth System Section 3 Ecology Section 1 Earth: A Unique Planet Objectives Describe the size and shape of Earth.

More information

Roles of Organisms in Ecosystems. P Organisms that feed off dead organisms or the waste of other organisms are called scavengers.

Roles of Organisms in Ecosystems. P Organisms that feed off dead organisms or the waste of other organisms are called scavengers. Roles of Organisms in Ecosystems P Organisms that feed off dead organisms or the waste of other organisms are called scavengers. Roles of Organisms in Ecosystems P Organisms that break down dead organisms

More information

NYS STANDARD/KEY IDEA/PERFORMANCE INDICATOR. LE Core* 1.1a, a-b, 4.1.1d, 4.1.f, 4.6.1a, 4.6.1c, 4.6.1d, 4.6.1g. Conducting an Experiment

NYS STANDARD/KEY IDEA/PERFORMANCE INDICATOR. LE Core* 1.1a, a-b, 4.1.1d, 4.1.f, 4.6.1a, 4.6.1c, 4.6.1d, 4.6.1g. Conducting an Experiment September Environmental Scientists The web of life The scientific method The Biosphere The third planet from the sun The universe Doppler Effect The sun s family The moon Tidal Forces The seasons The Earth

More information

2.2 Nutrient Cycles in Ecosystems Name: Date: (Reference: BC Science 10 pp. 68 to 91) Block: NUTRIENT CYCLING IN THE BIOSPHERE. nutrients: aka.

2.2 Nutrient Cycles in Ecosystems Name: Date: (Reference: BC Science 10 pp. 68 to 91) Block: NUTRIENT CYCLING IN THE BIOSPHERE. nutrients: aka. 2.2 Nutrient Cycles in Ecosystems Name: Date: (Reference: BC Science 10 pp. 68 to 91) Block: NUTRIENT CYCLING IN THE BIOSPHERE nutrients: stores: aka Nutrients are accumulated for short or long periods

More information

Chapter 6 Section 1: Interconnected Planet. Key Vocabulary Terms 1

Chapter 6 Section 1: Interconnected Planet. Key Vocabulary Terms 1 Chapter 6 Section 1: Interconnected Planet Key Vocabulary Terms 1 Adapted from Holt Biology 2008 Nonrenewable energy resource formed from the remains of organisms that lived long ago; oil coal and natural

More information

autotroph an organism that uses the Sun s energy and raw materials to make its own food; a producer

autotroph an organism that uses the Sun s energy and raw materials to make its own food; a producer trophic level a category of living things defined by how it gains its energy; the first trophic level contains autotrophs, and each higher level contains heterotrophs autotroph an organism that uses the

More information

Guided Notes Unit 3B: Matter and Energy

Guided Notes Unit 3B: Matter and Energy Name: Date: Block: Chapter 13: Principles of Ecology I. Concept 13.3: Energy in Ecosystems II. a. Review Vocabulary b. Autotrophs Guided Notes Unit 3B: Matter and Energy i. Producers: convert the light

More information

What do you know? You may have heard the term Eco-Friendly. Do you know what Eco stands for? What is Ecology?

What do you know? You may have heard the term Eco-Friendly. Do you know what Eco stands for? What is Ecology? Semester 1: Unit 3 What do you know? You may have heard the term Eco-Friendly Do you know what Eco stands for? What is Ecology? What do you think they mean by Eco-Friendly? Intro to Ecology Ecology is

More information

Vocabulary An organism is a living thing. E.g. a fish

Vocabulary An organism is a living thing. E.g. a fish Organisms in their Environment Vocabulary An organism is a living thing. E.g. a fish Vocabulary A habitat is where an organism lives E.g. a pond Vocabulary A group of the same kind of organisms living

More information

3.4 Cycles of Matter. Recycling in the Biosphere. Lesson Objectives. Lesson Summary

3.4 Cycles of Matter. Recycling in the Biosphere. Lesson Objectives. Lesson Summary 3.4 Cycles of Matter Lesson Objectives Describe how matter cycles among the living and nonliving parts of an ecosystem. Describe how water cycles through the biosphere. Explain why nutrients are important

More information

Biomass. primary productivity. Read Discovery: Ecology: Online reading on last slide Prentice Hall chapters 3&4. Ecosystems

Biomass. primary productivity. Read Discovery: Ecology: Online reading on last slide Prentice Hall chapters 3&4. Ecosystems How are detritivores different from decomposers? (please add this to your study guide) Detritivores take in dead material and it digest internally. They are all multicellular and eukaryotic (animals).

More information

Air & Water Lesson 2. Chapter 6 Conserving Our Resources

Air & Water Lesson 2. Chapter 6 Conserving Our Resources Air & Water Lesson 2 Chapter 6 Conserving Our Resources Objectives Summarize the importance of air. Describe the water cycle. Main Idea Living things use air and water to carry out their life processes.

More information

Energy and Matter in COMMUNITIES AND ECOSYSTEMS

Energy and Matter in COMMUNITIES AND ECOSYSTEMS Energy and Matter in COMMUNITIES AND ECOSYSTEMS abiotic factors physical aspects i.e. soil, water, weather (non-living) biotic factors the organisms (living) The community AND all physical aspects of

More information

Chapter 16 Human Impact on Ecosystems DAY ONE

Chapter 16 Human Impact on Ecosystems DAY ONE Chapter 16 Human Impact on Ecosystems DAY ONE Earth s resources As the human population grows, the demand for resources increases. Our population continues to grow. Earth s carrying capacity is actually

More information

Food Chains, Food Webs, and Bioaccumulation Background

Food Chains, Food Webs, and Bioaccumulation Background Food Chains, Food Webs, and Bioaccumulation Background Introduction Every living organism needs energy to sustain life. Organisms within a community depend on one another for food to create energy. This

More information

Gas Guzzlers. Biological Pump

Gas Guzzlers. Biological Pump Gas Guzzlers Biological Pump Aquatic Biodiversity Chapter 8 Coral Reefs Open Ocean Deep Sea Marine equivalent of tropical rain forests Habitats for one-fourth of all marine species Coral polyps, which

More information

Cycles of Matter. Slide 1 of 33. End Show. Copyright Pearson Prentice Hall

Cycles of Matter. Slide 1 of 33. End Show. Copyright Pearson Prentice Hall Cycles of Matter 1 of 33 The purpose of this lesson is to learn the water, carbon, nitrogen, and phosphorus cycles. This PowerPoint will provide most of the required information you need to accomplish

More information

Table of Contents. Discovering Ecology. Table of Contents

Table of Contents. Discovering Ecology. Table of Contents Table of Contents Table of Contents Introduction...1 What Is Ecology?...2 What Is an Ecosystem?...4 Learning About the Web of Life...7 Round and Round We Go: Cycles in the Ecosystem...10 Habitat Activity...13

More information