Multiple Choice
The upper respiratory tract is lined with mucous membranes which secrete mucous. What is the purpose of mucous?
A) traps microbes and debris from the air we breathe
B) warms and humidifies the air we breathe
C) warms and humidifies, and traps microbes and debris from the air we breathe
D) cools and dries the air we breathe
E) cools and dries, and traps microbes from the air we breathe
Correct Answer:
Verified
Correct Answer:
Verified
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