Food Webs

Front

What do the arrows in a food chain or web represent?

Back

They show what direction the energy is flowing between organisms.

Front

Which trophic level has the least amount of energy? 1-producers, 2-primary consumers, 3-secondary consumers, 4-tertiary consumers

Back

4 (tertiary consumers)

Front

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

Back

90%

Front

What is NOT one of the impacts of invasive species?

Back

Increases the stability of the ecosystem.

Front

What does a food pyramid represent?

Back

The relative amount of energy in trophic levels.

Front

Define producers in a food web.

Back

Organisms that produce their own food, typically through photosynthesis, and form the base of the food web.

Front

What are primary consumers?

Back

Herbivores that eat producers.

Front

What role do secondary consumers play in a food web?

Back

They are carnivores that eat primary consumers.

Front

What are tertiary consumers?

Back

Top predators that eat secondary consumers.

Front

Explain the concept of energy transfer in a food web.

Back

Energy is transferred from one trophic level to the next, with a significant amount lost as heat.