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red93sox red93sox
wrote...
Posts: 2956
8 years ago
Which of the following makes the body vulnerable to pathogens?
A) Enzymes in body secretions
B) Breaks in the skin or mucous membranes
C) Secretions produced by mucous membranes
D) Cilia in the respiratory tract
Textbook 
Access to Health

Access to Health


Edition: 13th
Author:
Read 772 times
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WishinWishin
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Posts: 2912
8 years ago
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red93sox Author
wrote...
8 years ago
Thank you
wrote...
8 years ago
Good luck with your course.
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