A: Niche becomes general and broader during b | vedclass

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(D) During biotic succession,the environment becomes more stable and complex. As the ecosystem matures,species become more specialized to utilize spec

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Both Assertion and Reason are incorrect.

Vedclass · Answer

(D) During biotic succession,the environment becomes more stable and complex. As the ecosystem matures,species become more specialized to utilize specific resources,which leads to niches becoming narrower and more specific rather than broader. Therefore,the Assertion is incorrect.Regarding the Reason,species diversity does increase during succession,but the total organic matter (biomass) also increases significantly as the community progresses toward a climax stage. Therefore,the Reason is also incorrect.

$A$: Niche becomes general and broader during biotic succession.
$R$: Species diversity increases but organic matter is decreased.

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$A$: Niche becomes general and broader during biotic succession.$R$: Species diversity increases but organic matter is decreased.