1.

Statement I : Rate of breathing is regulated is regulated by respiratory centres present in the medulla oblongata. Statement 2 , Changes in the `CO_(2)` level of the arterial blood control the rate of breathing.A. Both statement 1 and 2 correct.B. Statement 1 is correct but statement 2 is incorrect.C. Statement 1 is incorrect but statement 2 is correct.D. Both statement 1 and 2 incorrect.

Answer» Correct Answer - A


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