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[A] : A food chain is a group of organis...

[A] : A food chain is a group of organism in which there is a transfer of food energy therough a series of repeated eating and being eaten.
[R] : Interlocking pattern of several food chains is know as food chains is known as food web .

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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