grade 7 Science

Front

What do the arrows in a food chain or food web indicate?

Back

The flow of energy in the chain or web.

Front

When looking at energy pyramids, only _____ of the energy is passed from one trophic level to the next.

Back

10%.

Front

An organism that lives by breaking apart dead organic matter into simpler parts is...

Back

Decomposer.

Front

Which equation represents the process of photosynthesis?

Back

Water + Carbon dioxide + Sunlight = Glucose + Oxygen.

Front

What type of energy transformation occurs when Sheila eats a sandwich and then rides her skateboard?

Back

Chemical to thermal to mechanical.

Front

What is a food chain?

Back

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is a food web?

Back

A complex network of feeding relationships among various organisms in an ecosystem.

Front

What is a producer in an ecosystem?

Back

An organism that can make its own food through photosynthesis, such as plants.

Front

What is a consumer?

Back

An organism that obtains energy by feeding on other organisms.

Front

What is a scavenger?

Back

An organism that feeds on dead or decaying organic matter.