Ecological Energy Pyramids

Front

What is the ultimate source of energy for an ecosystem?

Back

Sun

Front

Which level in an energy pyramid most likely contains members of the plant kingdom?

Back

Producers (Level D)

Front

In an energy pyramid, energy _________ as you move up the pyramid.

Back

decreases

Front

Which trophic level in the pyramid has the highest biomass?

Back

PRODUCERS

Front

What does the 10% rule state about energy transfer between trophic levels?

Back

10% of energy moves from each trophic level to the next.

Front

If the producers level contains 1234 kilocalories, how many kilocalories are transferred to the primary consumer level?

Back

123.4 kilocalories

Front

Define 'biomass' in the context of an ecosystem.

Back

Biomass is the total mass of living organisms in a given area.

Front

What are 'primary consumers' in an energy pyramid?

Back

Organisms that eat producers, typically herbivores.

Front

What role do 'decomposers' play in an ecosystem?

Back

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

Front

What is a 'trophic level'?

Back

A trophic level is a position in a food chain or energy pyramid, representing the flow of energy.