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kiaraancheta kiaraancheta
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A year ago
What is the physical barrier that prevents pathogens from entering the body?

a) antibodies
b) ducts
c) microbiota
d) skin
Textbook 
Visualizing Nutrition: Everyday Choices

Visualizing Nutrition: Everyday Choices


Edition: 5th
Authors:
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msouthernmsouthern
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A year ago
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