Flow of Matter and Energy

Front

Name given to organisms that make their own food.

Back

autotrophs

Front

Name given to organisms that feed on dead matter.

Back

decomposers

Front

Name given to organisms that must consume other organisms to get energy.

Back

heterotrophs

Front

What term describes the position of an organism on the food chain?

Back

trophic levels

Front

What graphic organizer is represented by the image shown?

Back

food web

Front

What is the difference between a food chain and a food web?

Back

A food web shows the many different food chains in an ecosystem.

Front

Which term describes the contamination of soil, water, and air?

Back

pollution

Front

What is true about nutrients in the ecosystem (such as water, carbon, and nitrogen)?

Back

They cycle through the ecosystem in different forms to support life.

Front

Which nitrogen cycle process converts atmospheric nitrogen to a soil form usable by plants?

Back

nitrogen fixation

Front

What converts nitrogen gas into a usable form for plants and animals?

Back

bacteria