Given below are two statements. One is labelled Assertion (A) and the other is labelled Reason (R).
Assertion (A): Canal system is a critical feature in sponges.
Reason (R): This system is helpful in food gathering, respiratory exchange and removal of waste.
In light of the above statements, choose the correct answer from the options given below.

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(A) is true but (R) is false.

Both (A) and (R) are false.

Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true but (R) is not the correct explanation of (A).

answer is A.

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Detailed Solution

Both (A) and (R) are true and (R) is the correct explanation of (A).

The canal system is a critical feature in sponges because the canal system in sponges is fundamental to their functioning and survival. It allows water to flow through the sponge, facilitating various essential processes. The canal system in sponges serves multiple purposes:

Food gathering: It allows water to pass through, bringing in nutrients and planktonic organisms that sponges filter out.
Respiratory exchange: Oxygen and carbon dioxide exchange occurs across the surface of cells lining the canals.
Removal of waste: Waste products are carried away by the water flowing through the canals.

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