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Question
Which of the following organism is likely to have more concentration of D.D.T in its body?
Which of the following organism is likely to have more concentration of D.D.T in its body?
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Solution
The correct option is C Top carnivores
Persistent pesticides e.g., organochlorines or chlorinated hydrocarbons like DDT pass into food chain and increase in amount per unit weight of organisms with the rise in trophic level due to their accumulation in fat of animals. The phenomenon is called as biomagnification or bioconcentration or biological amplification. Higher the trophic level of an organism in a food chain higher will be the level of bioaccumulation. Hence, top carnivore is likely to have highest concentration of persistent DDT in its body.
Persistent pesticides e.g., organochlorines or chlorinated hydrocarbons like DDT pass into food chain and increase in amount per unit weight of organisms with the rise in trophic level due to their accumulation in fat of animals. The phenomenon is called as biomagnification or bioconcentration or biological amplification. Higher the trophic level of an organism in a food chain higher will be the level of bioaccumulation. Hence, top carnivore is likely to have highest concentration of persistent DDT in its body.
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