The body's most important nonspecific defense against pathogens is/are
A. tears.
B. mucus.
C. saliva.
D. skin.
The body's most important nonspecific defense against pathogens is skin.
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vandar|Points 720|
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Asked 2/22/2012 10:55:09 AM
Updated 3/2/2015 3:01:25 AM
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