NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES

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Assertion (A): Thoracic chamber is anatomically an air- tight chamber and any change in its volume has no effect whatever on the pulmonary cavity.

Reason (R): Lungs are situated in the thoracic cavity and this arrangement is essential for breathing.

Choose the correct answer from the following options.

View answer and explanation

Correct option: D

(A) is false but (R) is true

Option D ((A) is false but (R) is true) is correct because the assertion is false, while the reason is true.

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