Statement(S). Fishes belonging to chondrichthyes have heterocercal caudal fin Reason(R). These fishes have an anir bladder that acts as hydrostatic organA. Both Asserton and Reason are correct and Reason is the correct explanation of AssetionB. Both Assetion and Reason are correct, but Reason is not the correct explanation of AssertionC. Asserion is correct, but Reason is incorrectD. Assertion is incorrect, but Reason is correct

Statement(S). Fishes belonging to chondrichthyes have heterocercal cau

1.	Statement(S). Fishes belonging to chondrichthyes have heterocercal caudal fin Reason(R). These fishes have an anir bladder that acts as hydrostatic organA. Both Asserton and Reason are correct and Reason is the correct explanation of AssetionB. Both Assetion and Reason are correct, but Reason is not the correct explanation of AssertionC. Asserion is correct, but Reason is incorrectD. Assertion is incorrect, but Reason is correct
Answer» Correct Answer - C Chondrichthyes or cartilaginous fishes fo ot have air bladder but it is present in bony fishes. In cartilaginous fishes heaterocercal caudal fin is present. Air bladder helps in floating and maintaining b alance.

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