ScienceChapter 5Test Review

The process by which plants make food, using energy from sunlight.

F. photosynthesis

A community of organisms and the environment in which they live.

C. Ecosystem

An animal that eats only producers.

G. herbivore

An organism that makes its own food.

H. producer

An animal that eats plants or other animals.

A. consumer

The transfer of energy between organisms in an ecosystem.

B. Food chain

An organism that breaks down the remains of dead plants and animals.

D. Decomposer

A diagram that shows how much food energy is passed to each level in a food chain.

E. Energy pyramid

What is the source of energy for producers?

A. the sun, because producers need light to make food.

B. the earth, because the soil provides warmth and nutrients.

C. wind, because producers need wind to scatter their seeds.

D. fresh water, because producers need water to make food

A. the sun, because producers need light to make food.

What kind of animal comes last in every food chain?

A. carnivoreB. decomposerC. herbivoreD. producer

B. decomposer

Suppose a colony of ants eats a plant. How much of the plant’s energy is passed to the ants?

A. 1 percentB. 10 percentC. 50 percentD. 90 percent

B. 10 percent

Which process is NOT part of the nitrogen cycle.

A. bacteria that live on some plant roots fix nitrogen gas

B. plants release nitrogen compounds during transpiration.

C. Bacteria break down animal wastes and dead organisms.

D. lightning produces nitrogen compounds that dissolve in rain.

B. plants release nitrogen compounds during transpiration.

Which substance enables a plant to use the sun’s energy to make food?

A. chlorophyll

B. oxygen

C. sugar

D. water

A. chlorophyll

Which is a product of photosynthesis?

A. Carbon dioxide

B. Nitrogen

C. Oxygen

D. pigment

C. Oxygen

Which term is correctly described?

A. herbivore: second level consumer

B. omnivore: producer

C. carnivore: consumer

D. decomposer: first- level consumer.

C. carnivore: consumer

Which ordering of these organisms makes a food chain?

A. grass snake locust owlB. owl snake grass locustC. snake locust grass owlD. Grass locust snake owl

D. Grass locust snake owl