18
Question
Increase in the concentration of toxicants at successive trophic level is called
Increase in the concentration of toxicants at successive trophic level is called
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Solution
The correct option is B Biomagnification
- Biomagnification is defined as the accumulation of a particular substance in the body of the organisms at different trophic levels of a food chain.
- One example of biomagnification is the accumulation of insecticide DDT which gets accumulated in zooplanktons. Small fishes consume these zooplanktons.
- Small fishes are consumed by large fish which are finally consumed by fish-eating birds present at the highest position in the tropic level.
- Hence, the organism at the highest trophic level has the maximum accumulation of toxic substances.
Thus the correct answer is option B.
- Biomagnification is defined as the accumulation of a particular substance in the body of the organisms at different trophic levels of a food chain.
- One example of biomagnification is the accumulation of insecticide DDT which gets accumulated in zooplanktons. Small fishes consume these zooplanktons.
- Small fishes are consumed by large fish which are finally consumed by fish-eating birds present at the highest position in the tropic level.
- Hence, the organism at the highest trophic level has the maximum accumulation of toxic substances.
Thus the correct answer is option B.
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