ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which is NOT a reason why the amount of energy decreases at higher trophic levels
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cell respiration
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some of the organism left uneaten
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energy loss through feces
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detritivores and saprotrophs consume excess energy left behind
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Explanation:
Detailed explanation-1: -Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.
Detailed explanation-2: -With less energy at higher trophic levels, there are usually fewer organisms a s well . Organisms tend to be larger in size at higher trophic levels, but their smaller numbers result in less biomass.
Detailed explanation-3: -Pyramids of Biomass, Energy, and Numbers The amount of energy available to one trophic level is limited by the amount stored by the level below. Because energy is lost in the transfer from one level to the next, there is successively less total energy as you move up trophic levels.
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