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Assertion (A) : In a food chain members ...

Assertion (A) : In a food chain members of successive higher levels are fewer in number.
Reason (R ): Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level.

A

If both assertion and reason are true and the reason is a correct explanation of the assertion.

B

If both assertion and reason are true but reason is not a correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D
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[A] : In a food chain , membrane of successive higher levels are fewer in number . [R] : Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level .

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Knowledge Check

  • In a food chain, as we go from lower to higher trophic level, the energy:

    A
    becomes doubled at each step
    B
    increases irregularly
    C
    remains constant
    D
    decreases

  • Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the

    A
    food web
    B
    ecological pyramid
    C
    ecosystem
    D
    food chain

  • Generally how many trophic levels does a food chain have?

    A
    One
    B
    Two
    C
    Three
    D
    Three or four

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    Which are different trophic levels in food chain?

    In a food chain, the third trophic level is always occupied by

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