Biology, asked by ajeetroy261, 1 year ago

Regarding Class - Chondrichthyes : Assertion (A): In Chondrichthyes, air bladder is absent. Reason (R): They have to swim constantly to avoid sinking. Regarding (A) and (R) :

Answers

Answered by pantanjulavi

0

Answer:

A both are true and reason is the right explaination of Assertion

Explanation:

please mark as brainliest answer

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