Learning scale: Identify abiotic. and abiotic matter. Explain how biotic. are transformed and travel through an ecosystem.

Transcription

1 based on regarding energy consumption/production a Learning scale: Identify abiotic and biotic. Explain how biotic and are transformed and travel through an. the energy required to transform traveling through an, differentiate between energy cycling through and energy lost from an. Make predications regarding long term an based on regarding energy consumption/production a population and the ability to convert between and energy.

2 What is Photosynthesis: energy storing process What is an autotroph? What is cellular respiration? What is a heterotroph? Names consumers:. Primary. Secondary. Tertiary/quaternary What is the 0% Rule Three ways to represent trophic levels. Food chains. Food webs. Energy pyramids Energy Flow in Ecosystems Summary

3 What is Energy Energy is the ability to cause change or to do work Energy can cause an object to change its position or its motion Energy is all around you! You can hear energy as sound. You can see energy as light. And you can feel it as wind.

4 Where does all the energy come from??

5 Where does all the energy come from?? All the energy we use originates in the power the atom. Nuclear fusion reactions energize stars, including the Sun, and the resulting sunlight has pround effects on our planet. We use solar energy in its secondhand form: fossil fuels.

6 What about us???? All transfer energy! Nuclear energy -> Electromagnetic energy -> Chemical energy= Food!

7 Photosynthesis Cellular Respiration Ecological Niche Producers & Consumers Herbivores, Omnivores & Carnivores Scavenger Food Chain Trophic Levels Food Webs Ecological Pyramids

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10 carbon dioxide water light energy sugar oxygen Photosynthesis: energy storing process The process where the Sun s electromagnetic energy is converted into chemical energy Autotrophs organisms such as plants or algae that makes own energy-rich food compounds through photosynthesis using the Sun s energy. Also called producers

11 Photosynthesis: The process where the Sun s energy is converted into chemical energy (Glucose/Sugar). Occurs in PLANTS!! Producer an organism that makes its own energy-rich food compounds using the Sun s energy. Also called autotrophs carbon dioxide light energy water sugar oxygen

12 Photosynthesis: The process where the Sun s energy is converted into chemical energy (Glucose/Sugar). Occurs in PLANTS!! Producer an organism that makes its own energy-rich food compounds using the Sun s energy carbon dioxide light energy water sugar oxygen

13 Cellular Respiration: energy releasing process Breaking down organic compounds to release their energy. Heterotrophs are living things that cannot make its own food and instead obtains its food by taking in organic compounds. Also called consumers. sugar oxygen carbon dioxide water energy

14 Producers and consumers: All organisms are either producers (autotrophs) or consumers/ decomposers (Heterotrophs)

15 Producers and consumers: Consumers have names based on what they eat.

16 Producers and consumers: Primary consumers called herbivores are consumers that eat producers only. Secondary consumers can either be Carnivores (eat animals only, or Omnivores eat both plants and animals. Tertiary/quaternary Consumers. eat the secondary/tertiary consumers and are usually carnivores.

17 ENERGY IS LOST AT EACH TRANSFER MOST chemical energy in sugars from sunlight energy trapped by producers is used mainly by the producers themselves for staying alive. Energy used by producers through the process cellular respiration and is lost as heat. Only a small amount this energy is available to consumers in the.

18 The 0% Rule The 0% Rule means that when energy is passed from one organism to the next, only ten percent the energy will be passed on.

19 Trophic Levels Each step in the transfer energy through an is called a trophic level. In an, energy flows from the sun to producers to consumers to decomposers.

20 Representing Trophic Levels Food Chains A food chain is a direct passage energy through interconnected organisms. The arrows represent the flow energy.

21 Representing Trophic Levels Food Webs An interconnected group food chains. In most s, energy does not follow a simple food chain. Energy flow is much more complicated.

22 Representing Trophic Levels Ecological Pyramids An energy pyramid s shape shows how the amount useful energy that enters each level.

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