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Phylum Annelida

Assertion : L...

Question

Assertion : Lumbricus and Nereis both belong to Annelida.

Reason : They have nephridia.

A

Both A and R are true and R is the correct explanation of A

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B

Both A and R are true but R is not correct explanation of A

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C

A is true but R is false

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D

A and R are false

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Solution

The correct option is B Both A and R are true but R is not correct explanation of A
Lumbricus and Nereis both do belong to Annelida. Nephridia, unit of the excretory system in many primitive invertebrates. It is not an identifying charecteristic for annelids, therefore not the correct explanation.

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