SCIENCE
ECOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DDT
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PCB
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Mercury
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Glucose
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Detailed explanation-1: -Two common groups that are known to biomagnify are chlorinated hydrocarbons, also known as organochlorines, and inorganic compounds like methylmercury or heavy metals.
Detailed explanation-2: -Biomagnification refers to increase in concentration of toxicant at successive trophic levels. This happens because a toxic substance accumulated by an organism cannot be metabolised or excreted, and is thus passed on to the next higher trophic level. This phenomenon is well-known for mercury and DDT.
Detailed explanation-3: -Explanation: Pollutants need to satisfy characteristics like long life, biologically active, soluble in fat etc. to make biomagnification possible. Biomagnification refers to a process of Biological Magnification, meaning the increase of contaminated substances/toxic chemicals that take place in the food chains.
Detailed explanation-4: -Biomagnification is the method of accruing toxic elements by different organisms within a food chain. A prominent example of it is the presence of mercury within predatory fish. This level is so high that consuming these can cause cancer.