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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..........? |
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Answer» 1.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. 2.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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