Food Chains and Food Webs

Front

What are the three trophic levels in a food chain?

Back

Producer, Consumer, Decomposer

Front

Why might an organism have more than one arrow coming from them in a food web?

Back

More than one organism may eat them.

Front

Which type of organism needs to find its own food?

Back

Heterotroph

Front

Who is the secondary consumer in a food web?

Back

The organism that eats primary consumers.

Front

What percentage of energy is typically passed on to the next trophic level?

Back

About 10%.

Front

What happens to the energy that is not passed on to the next trophic level?

Back

It is converted to heat and is lost from the organism.

Front

Define a producer in a food chain.

Back

An organism that can make its own food through photosynthesis or chemosynthesis.

Front

Define a consumer in a food chain.

Back

An organism that cannot make its own food and must eat other organisms.

Front

What is a decomposer?

Back

An organism that breaks down dead or decaying organisms, returning nutrients to the soil.

Front

What is a food web?

Back

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