Question

What would be the order of magnification in algea , fish and fish eating man if the algea is growing in water containing concentration of .04 ppm of pesticide ddt ?

Answer 1

hey!!
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▪Biological Magnification, also called bioaccumulation -- is the process whereby certain substances such as pesticides or heavy metals move up the food chain.


These substances work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, animals or humans. The substances, called bioaccumulants, become concentrated in tissues or internal organs as they move up the chain.

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Occurs when compounds are poorly excreted by an organism thereby leading to a buildup of said compound as the organism consumes more and more organisms/substances containing the compound.

Answer 2

hye!

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↪DDT increases or biomagnifies if we look at a food chain. DDT is fat soluble meaning animals store it in fatty tissues.

↪ It also takes a relatively long amount of time to break down.

➡ when predator consumes multiple organisms and each organism has a small amount of DDT.

↪the amount of DDT in the predator is going to be the result of all of those

small amounts combined.