OBJECTIVE LIFE SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Because there are not enough consumers.
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Because energy is lost at each level.
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Because there are not enough producers.
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Because there is not enough food.
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Detailed explanation-1: -Most food chains are quite short, and they rarely consist of more than four steps. This is because a lot of energy is lost at each step. After about three steps, very little energy is still available for use by living organisms.
Detailed explanation-2: -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-3: -length of a food chain in an ecosystem generally limited to 3-4 trophic levels because which energy is transferred for 3-4 trophic levels is enough to do work and after that, the energy is not enough to do work because only 10% of energy is transferred to next level.