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Phylum Annelida

Assertion [A]...

Question

Assertion [A] : Platyhelminthes are acoelomates.

Reason [R] : In platyhelminthes the coelom is filled with a packing tissue called mesenchyme.

A

Assertion [A] is True and Reason [R] is False.

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B

Reason [R] is True and Assertion [A] is False.

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C

Assertion [A] and Reason [R] are False.

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D

Assertion [A] and Reason [R] are True.

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Solution

The correct option is D
Assertion [A] and Reason [R] are True.

In platyhelminthes the coelom is filled a packing tissue called mesenchyme. So there is no space available for the formation of coelom as a result they are acoelomates. This feature is also an adaptation for their parasitic mode of nutrition.

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