In the energy pyramid, what number would the A represent at the herbivore level? lb 2. 50,000 lb lb lb 45% 25% 15% 15%

Transcription

1 Ecosystem review

2 In the energy pyramid, what number would the A represent at the herbivore level? lb 2. 50,000 lb lb lb Carnivore B Herbivore A Producer 5000 lb 25% 45% 15% 15% 5000 lb 50,000 lb 500 lb 1000 lb

3 Which statement is true about the energy pyramid? 1. All of the energy from the producer is passed to the herbivore. 2. There are less organisms in the producer level than in the herbivore level. 3. Each level has the same amount of energy available. 4. The least energy and number of organisms are 30% available at the top of the pyramid. Carnivore B Herbivore A Producer 5000 lb 50% 15% 5% All of the ene... There are less... Each level has... The least ener...

4 A tree can have many niches in a forest ecosystem. All of the following may be a niche for a tree EXCEPT 1. It provides food for animals 2. It is a consumer of organisms 55% 3. It provides shade for snakes 4. It provides materials for birds to build nests 10% 15% 20% It provides food for animals It is a consumer of orga... It provides shade for snakes It provides materials for...

5 Which is an abiotic factor? 1. Birds 2. Dead Flowers 3. Insects 4. water 25% 60% 10% 5% Birds Dead Flowers Insects water

6 Which is a biotic factor? 1. sunlight 2. Rotten logs 3. soil 4. rainfall 75% 20% 5% 0% sunlight Rotten logs soil rainfall

7 In the diagram, less rainfall may result in fewer flowers that are able to survive in that particular ecosystem. In this example, less rainfall may be a 1. Limiting factor 2. Niche 55% 3. Biotic factor 4. producer 25% 20% 0% Limiting factor Niche Biotic factor producer

8 An aquarium of turtles can be considered a small ecosystem. Which of the following is an example of how the turtles could interact with an abiotic part of the aquarium ecosystem? A. turtles eat insects you place in the aquarium B. turtles fight each other for food C. Turtles swim in the water D. turtles eat plants in the aquarium 10% 10% 55% 25% A. turtles ea... B. turtles fig... C. Turtles swi... D. turtles eat...

9 In this food web, which organism is the herbivore? 1. grass 2. Cougar 3. shrew 4. rabbit 65% 10% 10% 15% grass Cougar shrew rabbit

10 In this food web, which organism is the autotroph? 1. grass 45% 2. Cougar 3. shrew 30% 4. rabbit 20% 5% grass Cougar shrew rabbit

11 In this food web, which organism is the omnivore? 1. grass 2. Cougar 3. shrew 4. mouse 63% 21% 5% 11% grass Cougar shrew mouse

12 In this food web, which organism is the carnivore? 1. grass 2. deer 3. shrew 4. rabbit 30% 50% 10% 10% grass deer shrew rabbit

13 In this food web, which organism can be a primary consumer? 1. grass 2. Cougar 47% 3. shrew 4. insects 21% 21% 11% grass Cougar shrew 4. insects

14 In this food web, which organism can be a secondary consumer? 1. grass 2. Cougar 3. rabbit 4. deer 79% 11% 5% 5% grass Cougar rabbit 4. deer

15 In this food web, which organism can be a tertiary consumer? 1. grass 2. Cougar 3. shrew 4. snake 80% 0% 15% 5% grass Cougar shrew 4. snake

16 If insects were removed from this food web, which of the following would most likely happen? 1. Shrew and mouse may increase. 2. The population of grass, shrew, and mice may increase. 3. Grasses would increase, but the shrew and mice may decrease. 4. No populations would be affected by the removal of insects. 25% 15% 60% 0% Shrew and mouse may i... The population of grass,... Grasses would increase,... No populations would b...

17 In this food web, which organism does not eat grass? 1. Shrew 2. Mouse 3. Rabbit 4. insects 100% 0% 0% 0% Shrew Mouse Rabbit insects

18 Which statement is true about how energy flows in the above food web? A. Energy is transferred from the grass to the insects. B Energy is transferred from the snakes to the shrew. C Energy is transferred from the rabbit to the grass. D Energy is not transferred at all. 80% 5% 15% 0% A. Energy is... BEnergy is tra... CEnergy is tra... DEnergy is not...

19 Which word best describes ALL of the animals and plants including the grass, fish, frogs, and insects living together in a pond? 1. Consumers 2. Biosphere 3. Community 4. Population 15% 15% 40% 30% Consumers Biosphere Community Population

20 According to the figure shown, what happens to the bird population when the mosquito population declines? 1. The bird population decreases. 2. The bird population rises. 3. The bird population rises slightly. 4. The bird population stays the same. 74% 16% 0% 11% The bird population dec... The bird population rises. The bird population rises... The bird population stay...

21 What is the study of the interactions between the living and nonliving parts of an ecosystem? 1. Biology 2. History 3. Geology 4. ecology

22 The Guam fruit bat is now an extinct species. What probably DID NOT contribute to its extinction? 1. Predators such as the brown tree snake 2. Habitat destruction such as forest clearing 3. Increase in the berry population 4. Hunting by humans 20% 50% 25% 5% Predators such as the b... Habitat destruction such... Increase in the berry po... Hunting by humans

23 Which of the following is NOT TRUE about the biosphere? 1. It is the smallest part of an ecosystem 45% 2. It consists of the entire Earth s crust, water, and air 25% 3. It contains all of the ecosystems on together 30% It is the smallest part of.. It consists of the entire E... It contains all of the eco...

24 There are 20 worms in an area that is 5 meters in width. Therefore, there are 2 worms / m². This BEST describes 1. Population 2. Population density 3. Number of abiotic factors 4. The biosphere 0% 0% 0% 0% Population Population density Number of abiotic factors Response Grid The biosphere

25 Which is the order of levels of organization in ecology from least to greatest in size? A=Biosphere B=community C=organism D=population 1. A, B, C, D 2. C, D, B, A 3. C, B, D, A 4. C, B, A, D 0% 0% 0% 0% Response Grid A, B, C, D C, D, B, A C, B, D, A C, B, A, D

26 On the coral reef ecosystem shown, which factor is biotic? 1. Rocks 2. Sand 3. algae 4. snakes 0% 0% 0% 0% Response Grid Rocks Sand algae snakes

27 All of the following are heterotrophs in the food web EXCEPT 1. Grass 2. Cougar 3. Mouse 4. insects 0% 0% 0% 0% Response Grid Grass Cougar Mouse insects

28 When a bear drinks water from a small stream, the bear is interacting with. 1. An abiotic factor 2. Another organism 3. A biotic factor 4. Its population 0% 0% 0% 0% Response Grid An abiotic factor Another organism A biotic factor Its population

29 In a meadow ecosystem, hawks feed mostly on mice. When the mice population is small, there is less food for hawks, so the hawk population becomes smaller. When the mice population grows, the number of hawks also grows. For the hawk population, the number of mice in this meadow is an example of a. 1. Niche 2. Habitat 3. Producer 4. Limiting factor 0% 0% 0% 0% Response Grid Niche Habitat Producer Limiting factor

30 A very small pond in a forest ecosystem provides water for a deer population. The pond depends on obtaining water from rain. There has been an extreme shortage of rainfall and very hot temperatures during the summer. Much of the grass has died. Most of the trees in the forest have been cleared out by logging. Which is most likely NOT going to be a limiting factor for the deer? 1. Grass as a food source 2. The amount of space available 3. Its water source 4. Shelter provided by trees 0% 0% 0% 0% Grass as a food source The amount of space ava... Its water source Shelter provided by trees Response Grid

31 Which statement is TRUE about how energy flows in an ecosystem? 1. Energy starts with the sun, goes to the producer, and then to the consumer where it is recycled 2. Energy flows from consumers to producers 3. Energy is NOT passed to the next organism in a food chain because it is totally used up 4. Energy does NOT ever flow in an ecosystem 0% 0% 0% 0% Response Grid 1. Energy sta Energy flo Energy is Energy do...

32 To complete food chain 2 in the figure shown, you would draw an arrow from to hawk. 1. bacteria 2. Plant 3. Snake 4. sun 0% 0% 0% 0% Response Grid bacteria Plant Snake sun

33 Which is the best example for C on the figure shown? 1. Food for small animals 2. Food for insects 3. Materials for nest building 4. A place for owls to live 0% 0% 0% 0% Food for small animals Food for insects Materials for nest building A place for owls to live Response Grid

34 According to the figure shown, in what year was the mosquito population the highest? % 0% 0% 0% Response Grid

35 Which is the best example for B on the figure shown? 1. Shade for snakes 2. Food for small animals 3. Lookout for predators 4. Site for owl nests 100% Enter answer text...