Biological magnification refers to

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(A) Biological magnification (or biomagnification) refers to the increase in the concentration of persistent toxic chemicals (such as insecticides or

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Concentration of insecticide in animals

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(A) Biological magnification (or biomagnification) refers to the increase in the concentration of persistent toxic chemicals (such as insecticides or heavy metals) at successive trophic levels in a food chain.As these chemicals are not degraded or excreted,they accumulate in the fatty tissues of organisms,leading to higher concentrations as we move up the food chain.The best example of biomagnification is the accumulation of mercury leading to Minamata disease in Japan.

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