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Biology 12 Online
OpenStudy (anonymous):

the body's most widespread nonspecific defense against pathogens is (are) A. tears B. mucus C. saliva D. skin

OpenStudy (anonymous):

i think its b or c

OpenStudy (anonymous):

D

OpenStudy (anonymous):

how did you get d?

OpenStudy (anonymous):

I have taken biology..

OpenStudy (anonymous):

oh ok thank you

OpenStudy (anonymous):

np, medal please (:

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