1.

Give reason to justify the following-a) Flow of energy in a food chain is unidirectional.

Answer»

Ans :- Theflow of energyin the ecosystem is unidirectional. Theenergyenters the plants (from the sun) through photosynthesis during the making offood. Thisenergyis then passed on from one organism to another in afood chain.Theenergy available at each successive trophic level is 10 per cent of the previous level.

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