Environment And Road Safety Education And Violence Against Women And Children And Drug Abuse 2019 Exam With Answers

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46.

Which of the following organism is likely to have more concentration of D.D.T in its body ?

A: Herbivores
B: Carnivores
C: Top Carnivores
D: Producers

The answer is: C

Explanation

The organism that is likely to have a higher concentration of DDT in its body is:

(C) Top Carnivores.

DDT (dichloro-diphenyl-trichloroethane) is a pesticide that has been widely used in the past. It is a persistent organic pollutant that can bioaccumulate and biomagnify in food chains. When DDT is used, it enters the environment and is taken up by plants, known as producers, through soil or water. Herbivores that consume these contaminated plants will accumulate some amount of DDT in their bodies.

However, as the contaminated plants are consumed by carnivores, the concentration of DDT can become further magnified. This is because carnivores consume multiple herbivores, and each time they consume contaminated prey, they accumulate the DDT present in their prey's body. As a result, the highest concentration of DDT is generally found in top carnivores, such as large predatory animals at the highest trophic levels in the food chain.