Assertion :It is necessary to study life history of an ascidian to consider it as chordata. Reason: Tadpole larva of ascidians have a notochord that disappears in the adult.
A
Both A and R are true and Reason is the correct explanation for A
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B
Both A and R are true and R is not the correct explanation for A
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C
A is true but R is false
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D
A is false but R is true
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Solution
The correct option is A Both A and R are true and Reason is the correct explanation for A It is necessary to study life history of an ascidian to consider it as chordata. Its one of the characteristics is that the tadpole larva of ascidians have a notochord that disappears in the adult.