Food Chains, Webs, and Pyramids

Front

What is a consumer?

Back

An organism that gets energy by eating other organisms.

Front

What is a producer?

Back

An organism that makes its own food through photosynthesis or chemosynthesis.

Front

What percentage of energy is passed from one trophic level to the next?

Back

10%.

Front

Which organism receives the least amount of energy from the producer in a food chain?

Back

The top predator, such as an owl.

Front

What happens to the food web if a key species is removed?

Back

The organisms that depend on that species may be significantly affected.

Front

Define a food chain.

Back

A linear sequence of organisms where each is eaten by the next in the chain.

Front

Define a food web.

Back

A complex network of interconnected food chains in an ecosystem.

Front

What is a trophic level?

Back

Each step in a food chain or food web, representing a different level of energy transfer.

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organic matter, returning nutrients to the soil.

Front

What is an herbivore?

Back

An organism that primarily eats plants.