NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES

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Which of the following changes usually tends to occur in plain dwellers when they move to the high altitudes?
I. Increased breathing rate
II. Increased RBC production
III. Increased WBC production
IV. Increased thrombocyte count
Choose the correct option

View answer and explanation

Correct option: D

I and II

Option A (I and II) is correct because when plain dwellers move to high altitudes, their breathing rate increases and RBC production increases to compensate for lower oxygen availability.

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