Question

Q. "Energy flow in a food chain is unidirectional" Justify this statement. Explain how the pesticides enter a food chain and subsequently get into our body....?

Answer 1

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The flow of energy in the ecosystem is said to be unidirectional because the energy lost as heat from the living organisms of a food chain cannot be reused by plants in photosynthesis.

The flow of energy in the ecosystem is said to be unidirectional because the energy lost as heat from the living organisms of a food chain cannot be reused by plants in photosynthesis.Pesticides are non-biodegradable wastes which pass along the food chain from crops to man or other animals and birds and harm them.

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Answer 2

The flow of energy in the ecosystem is said to be unidirectional because the energy lost as heat from the living organisms of a food chain cannot be reused by plants in photosynthesis.

Pesticides are non-biodegradable wastes which pass along the food chain from crops to man or other animals and birds and harm them.