Food Webs

Front

What is a trophic level?

Back

Each level represented within a food chain or web.

Front

What does an energy pyramid represent?

Back

The amount of energy available to the next 'feeder' in a food web.

Front

What is an organism that needs to eat other organisms to obtain energy called?

Back

Consumer.

Front

How much energy in each level of the energy pyramid gets lost as heat or used by the organism for survival?

Back

90%.

Front

What is the role of a producer?

Back

Use sunlight to make food.

Front

What is a food web?

Back

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

Front

What is a primary consumer?

Back

An organism that eats producers (plants) for energy.

Front

What is a secondary consumer?

Back

An organism that eats primary consumers for energy.

Front

What is a decomposer?

Back

An organism that breaks down dead organic material, returning nutrients to the ecosystem.

Front

What is the difference between autotrophs and heterotrophs?

Back

Autotrophs produce their own food (e.g., plants), while heterotrophs consume other organisms for energy.