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Q: Assertion (A) No food material normally enters the wind pipe during swallowing.
Reason (R) When we swallow, the back portion of our tongue covers the 'opening of the wind pipe.
A. a B. b
C. c D. d
E. e

Answer and Explanation

Answer:a

Explanation:
No food material normally enters the wind pipe during swallowing because when we swallwo, the back portion of our tounge covers the opening of the wind pipe. So, both (A) and (R) are true and (R) is the correct explanation of (A).

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