Question

Energy flow in a food is unidirectional . justify ?​

Answer 1

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The flow of energy in food chains is unidirectional. The energy which passes to the herbivores does not come back to the autotrophs. The energy that is captured by the autotrophs does not revert back to the Sun. Therefore, in the food chain, the energy moves progressively through various trophic levels.

more information

The flow of energy in an ecosystem is said to be unidirectional because some energy is lost in form of heat when moving from one trophic level to next for the maintenance of homeostasis of an organism thus each successive trophic level receive a less amount of energy as compared to the preceding trophic level.

Answer 2

Answer:

The flow of energy in food chains is unidirectional. The energy which passes to the herbivores does not come back to the autotrophs. The energy that is captured by the autotrophs does not revert back to the Sun. Therefore, in the food chain, the energy moves progressively through various trophic levels.