Biology > 2006 > 27
WASSCE
If the mucus in the air track of mammals dry up and the hairs in the nostrils are removed
A.
impure air will be breathed into their lungs
B.
the speed of air movement into their lungs would increase
C.
breathing air into their lungs would be difficult
D.
more air would be taken into their lungs
Answer: A
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