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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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Which of the following feature is common in the alveoli of lungs and villi of mammals?
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Correct option: A
provide a large surface area
Option A (provide a large surface area) is correct because both alveoli in the lungs and villi in the small intestine are highly folded structures that increase the surface area for efficient exchange.
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Select appropriate choice for the blanks A, B and C to complete the given NCERT statement The largest quantity of air that can be expired after a maximum inspiratory effort is Assertion : Most fish when out of water, die of
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