Biology, asked by alberteinstien5647, 1 year ago

Ddt reduced are rapidly passed through food chain

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Answered by tejasri2
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DDT definition.
A colorless insecticide that kills on contact. It is poisonous to humans and animals when swallowed or absorbed through the skin. DDT is an abbreviation for dichlorodiphenyltrichloroethane.

how DDT becomes concentrated as it passes through a food chain



The figure shows how DDT becomes concentrated in the tissues of organisms representing four successive tropic levels in a food chain

The concentration effect occurs because DDT is metabolized and excreted much more slowly than the nutrients that are passed from one trophic level to the next. So DDT accumulates in the bodies (especially in fat). Thus most of the DDT ingested as part of gross production is still present in the net production that remains at that tropic level

This is why the hazard of DDT to nontarget animals is particularly acute for those species living at the top of food chain

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