ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why is some energy not passed on to the next trophic level?
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The organisms at each level use about 90% of the available energy to live.
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The statement is NOT true. All energy IS passed from one trophic level to the next.
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The organisms at each level use about 10% of the available energy to live.
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Most energy is absorbed by the soil instead.
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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: -At each step up the food chain, only 10 percent of the energy is passed on to the next level, while approximately 90 percent of the energy is lost as heat.
Detailed explanation-3: -How does energy move between trophic levels? Energy can pass from one trophic level to the next when organic molecules from an organism’s body are eaten by another organism.
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