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(A) $DDT$ is a non-biodegradable chemical substance that cannot be broken down by biological processes.It accumulates at each successive trophic level

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Man is at the highest trophic level.

Vedclass · Answer

(A) $DDT$ is a non-biodegradable chemical substance that cannot be broken down by biological processes.It accumulates at each successive trophic level in a food chain,a phenomenon known as biological magnification or biomagnification.Since man occupies the highest trophic level in this food chain,the concentration of $DDT$ is found to be the maximum in man due to the cumulative effect of its intake from lower trophic levels.

List-$I$	List-$II$
$1.$ Producer	$a.$ Rabbit
$2.$ Herbivore	$b.$ Bear
$3.$ Carnivore	$c.$ Algae
$4.$ Omnivore	$d.$ Snake

In a certain study conducted on the occurrence of $DDT$ along food chains in an ecosystem,the concentration of $DDT$ in grass was found to be $0.5\, ppm$ (parts per million),in sheep it was $2\, ppm$,and in man it was $10\, ppm$. Why was the concentration of $DDT$ maximum in the case of man?

Similar Questions

Larger animals kill smaller animals in the forest,eat whatever they can,and leave the rest in the forest,but the forest is never found full of dead animals. What happens to the bodies of these dead animals?

Which of the following is the correct match between List-$I$ and List-$II$?
List-$I$ List-$II$
$1.$ Producer $a.$ Rabbit
$2.$ Herbivore $b.$ Bear
$3.$ Carnivore $c.$ Algae
$4.$ Omnivore $d.$ Snake

The decomposers in an ecosystem

In the given figure,the various trophic levels are shown in a pyramid. At which trophic level is maximum energy available?

Which of the following is included in edaphic factors?

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