$A$: Decomposers are excluded from the food chains.
$R$: They act on all trophic levels of a food chain.

  • 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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Similar Questions

Identify the mismatched pair.

Assertion $(A):$ $A$ natural ecosystem is usually self-sustainable.
Reason $(R):$ An ecosystem having producers,decomposers,and a source of energy is self-sustainable. Select the correct answer from the options given below:

Biogeochemical cycles can be traced in

Sparrow eats seeds. Afterwards, it eats insects. In which trophic level does the sparrow belong in both situations, respectively?

Which of the following is $NOT$ a gaseous biogeochemical cycle in an ecosystem?

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