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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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Understanding
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Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of:
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Correct option: B
Residual Volume
Option B (Residual Volume) is correct because residual volume is the air remaining in the lungs after a forceful expiration, preventing collapse.
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suffocation.
Reason : Atmospheric air contains far less
oxygen content than the dissolved oxygen in
water. The faster breathing in high fever is due to the