1.

Assertion: The first step of gas exchange occurs through body surface in some animals. Reason: Body surface or membrane of amphibia is thick in nature.A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.B. If both Assertion and Reason are true ,but the Reason is not the correct explanation of the Assertion.C. If Assertion is true, but Reason is falseD. If both Assertion and Reason are false.

Answer» Correct Answer - C


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