food Webs, food chains

Front

What percentage of energy is passed on to each trophic level in a food chain?

Back

10%

Front

If there is 2000 kcal of energy in an ecosystem, how much energy is available for hawks at the top of the food chain?

Back

20 kcal

Front

What is a herbivore?

Back

An organism that gets energy from eating only plants.

Front

Which of the following is a herbivore: cricket, hawk, or snake?

Back

Cricket.

Front

In an energy pyramid, how much energy is lost as heat or used by organisms for survival at each level?

Back

90%.

Front

What is a food web?

Back

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

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 role do producers play in a food chain?

Back

Producers convert solar energy into chemical energy through photosynthesis.

Front

What are primary consumers?

Back

Organisms that eat producers; they are typically herbivores.

Front

What are secondary consumers?

Back

Organisms that eat primary consumers; they can be carnivores or omnivores.