Sawaal
2
Q:

The C shape of the tracheal cartilages is important because

A) divide the nasal cavity B) Allows for expansion or contraction of the trachea
C) provide a surface for the sense of smell D) All of the above

Answer:   B) Allows for expansion or contraction of the trachea



Explanation:

Allows for expansion or contraction of the trachea. Hence, so large masses of food can pass through the esophagus during swallowing.

Subject: Biology
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