In certain study conducted on the occurrence of DDT along food chains in an ecosystem, the concentration of DDT in grass was found to be 0-5 ppm. In sheep, it was 2 ppm and in man it was 10 ppm. Why was the concentration of DDT maximum in case of man, which phenomenon is explained draw the pyramid on the basis of data provided.
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The concentration of DDT was maximum in case of man due to biomagnification. As the trophic level increases the amount of harmful chemical also increases. Man exists at topmost position in the food chain, so man has maximum (10 ppm) concentration of DDT.
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