SC.912.L.17.9 -- Food Webs, Energy Pyramids, and Energy Flow

Front

What happens to the amount of energy as you move from the bottom to the top of an energy pyramid?

Back

The amount of energy decreases.

Front

What percentage of energy is typically passed from one trophic level to the next in an energy pyramid?

Back

About 10%.

Front

What is the primary form of energy released by organisms during metabolic functions?

Back

Heat.

Front

What is a common example of a decomposer in an ecosystem?

Back

Bacteria.

Front

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

Back

Producers.

Front

Define 'trophic level' in the context of an energy pyramid.

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 producers play in a food web?

Back

Producers convert solar energy into chemical energy through photosynthesis, forming the base of the food web.

Front

Explain the concept of energy flow in an ecosystem.

Back

Energy flow refers to the transfer of energy from one trophic level to another in a food web, typically decreasing at each level.

Front

What is the significance of decomposers in an ecosystem?

Back

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

Front

How does energy transfer affect the population sizes of different trophic levels?

Back

Energy transfer limits the number of organisms at higher trophic levels due to the decrease in available energy.