Which statement about energy flow in a food pyramid is true?

Study for the FMS Science Test. Engage with flashcards and multiple-choice questions, each enhanced with hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

Which statement about energy flow in a food pyramid is true?

Explanation:
Energy flows through an ecosystem from the base of the pyramid upward, and the available energy decreases at each higher level. Producers capture energy from the sun and store it as chemical energy in biomass. When organisms at one level feed on the level below, only a portion of that energy is transferred to the next level; the rest is lost as heat and used for metabolism, growth, and daily activities. Because of these losses, there is less energy available to support organisms at each successive level, so the base holds the most energy and it declines moving upward. The other statements misstate where energy comes from or how it moves: energy isn’t generated at higher levels, and the base is not the level with the least energy.

Energy flows through an ecosystem from the base of the pyramid upward, and the available energy decreases at each higher level. Producers capture energy from the sun and store it as chemical energy in biomass. When organisms at one level feed on the level below, only a portion of that energy is transferred to the next level; the rest is lost as heat and used for metabolism, growth, and daily activities. Because of these losses, there is less energy available to support organisms at each successive level, so the base holds the most energy and it declines moving upward. The other statements misstate where energy comes from or how it moves: energy isn’t generated at higher levels, and the base is not the level with the least energy.

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