Ecological Energy Pyramids

Front

What is the ultimate source of energy for an ecosystem?

Back

The Sun.

Front

What happens to energy as you move up an energy pyramid?

Back

Energy decreases.

Front

Which organisms have the most energy available in an energy pyramid?

Back

Producers.

Front

Why is a pyramid shape used to represent energy at each trophic level?

Back

Because energy decreases as you go up the food chain, similar to how the pyramid shape gets smaller.

Front

What is a false statement about energy transfer in a food web?

Back

100% of the energy made by the vegetation is passed to the geese and mute swans.

Front

What are the primary producers in an ecosystem?

Back

Organisms that produce their own energy, typically through photosynthesis, such as plants.

Front

What is a trophic level?

Back

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

Front

What role do consumers play in an energy pyramid?

Back

Consumers obtain energy by eating producers or other consumers.

Front

What is the significance of decomposers in an energy pyramid?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and completing the energy cycle.

Front

How much energy is typically transferred from one trophic level to the next?

Back

About 10% of the energy is transferred to the next trophic level.