Question

Energy flow in food chains is always unidirectional justify this statement

Answer 1

this means that energy that is captured by autotrophs never reverts back to the solar input. it moves progressively to the various trophic levels and is no longer available to previous one

Answer 2

Energy flow is uni-directional:-

• It is unidirectional because the energy that is captured by the autotrophs does not revert back to the solar input
• the energy which passes to the herbivores does not come back to autotrophs.

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