Food Webs and Energy Pyramids

Front

What is the primary source of energy in a food web?

Back

Producers (such as plants) are the primary source of energy in a food web.

Front

If there are 1000 Kcal available in the producers, how much energy is typically available to herbivores in the next trophic level?

Back

Approximately 100 Kcal.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

Front

Name three examples of decomposers.

Back

Bacteria, fungi, and earthworms.

Front

In an energy pyramid, which level has the most energy?

Back

The producers at the base of the pyramid have the most energy.

Front

What happens to the amount of energy as you move up the energy pyramid?

Back

The amount of energy decreases as you move up the energy pyramid.

Front

What is a secondary consumer?

Back

A secondary consumer is an organism that eats primary consumers (herbivores) in a food web.

Front

Give an example of a secondary consumer in a food web.

Back

A mouse can be considered a secondary consumer.

Front

What is the significance of energy transfer in a food web?

Back

Energy transfer is crucial for maintaining the balance of ecosystems and supporting various trophic levels.

Front

What is a trophic level?

Back

A trophic level is a position in a food web or energy pyramid that indicates the flow of energy through an ecosystem.