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Home Q & A Board Biology-Related Homework Help General Biology
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hellothere2 hellothere2
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6 years ago
All of the following represent physical and/or chemical barriers that form the body's first line of defense against pathogens EXCEPT which one?
A) tears
B) resident bacteria
C) skin surface
D) earwax
E) antibodies
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stillfastillfa
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Posts: 200
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6 years ago
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hellothere2 Author
wrote...
#2
6 years ago
Thanks for your help!
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