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

  • A
    Assertion and Reason both are correct and Reason is the correct explanation of Assertion.
  • B
    Assertion and Reason both are correct but Reason is not the correct explanation of Assertion.
  • C
    Assertion is correct,but Reason is incorrect.
  • D
    Both Assertion and Reason are incorrect.

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The functional aspects of an ecosystem mainly include which of the following?

Distinguish between:
$(a)$ Grazing food chain and detritus food chain
$(b)$ Production and decomposition

Which among the following is not a functional unit of the ecosystem?

In an ecosystem, at which trophic level can a human consuming curd be placed?

Which is the correct sequence in the food chain in a grassland?

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