Ecology

Front

What is a food web?

Back

A system of interconnected food chains that shows the transfer of energy among various organisms in an ecosystem.

Front

What does a secondary consumer eat?

Back

A secondary consumer eats primary consumers.

Front

Which group of organisms is the largest in a food web?

Back

Producers are the largest group of organisms found in a food web.

Front

If there are 1000 Kcal available in producers, how much energy is available in herbivores?

Back

100 Kcal is available in the herbivores in trophic level 2.

Front

Which organism receives the least amount of energy from the producer?

Back

The owl receives the least amount of energy from the producer.

Front

Define primary consumers.

Back

Primary consumers are organisms that eat producers (plants) for energy.

Front

What role do decomposers play in an ecosystem?

Back

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

Front

What is the energy transfer efficiency between trophic levels?

Back

Energy transfer efficiency is typically about 10% from one trophic level to the next.

Front

What is a trophic level?

Back

A trophic level is a position in a food chain or food web, defined by how an organism obtains energy.

Front

What is the difference between a predator and prey?

Back

A predator is an organism that hunts and eats other organisms (prey).