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In a certain study conducted on occurren...

In a certain study conducted on occurrence of DDT along food chains in an ecosystem, the concentration of DDT in grass was found to be 0.5 ppm (parts per million) in sheep it was 2 ppm and in man it was 10 ppm. Why was the concentration of DDT maximum in case of man ?

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DDT is non-biodegradable. It accumulates at each trophic level. As man is positioned at the highest trophic level, there is maximum accumulation of DDT in man. This phenomenon is called biological magnification.
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