OBJECTIVE LIFE SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which are true regarding matter and energy in ecosystems?
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energy flows in one direction
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energy is recycled
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matter flows in one direction
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matter is recycled
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Explanation:
Detailed explanation-1: -Energy is not recycled in ecosystems and each ecosystem requires a continuous input of energy to sustain it. There is some energy transformed at each level of the food chain or food web in an ecosystem.
Detailed explanation-2: -Although energy has a one-way flow, matter can be recycled between and within ecosystems. It is also pertinent to note here that energy does not recycle in the same way that atoms and nutrients do.
Detailed explanation-3: -Unlike the one-way flow of energy, matter is recycled within and between ecosystems. Elements pass from one organism to another and among parts of the biosphere through closed loops called biogeochemical cycles, which are powered by the flow of energy.
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