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What are the front line barriers for keeping pathogens out of the body?
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What are the front line barriers for keeping pathogens out of the body?

User Happymeal
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2 Answers

11 votes

Answer:

Skin

Step-by-step explanation:

Mucous membranes, and endothelia serve as physical barriers that prevent microbes.

User Kevin Sun
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7.7k points
5 votes

Answer:

the skin

Step-by-step explanation:

User Jeanot Zubler
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8.5k points
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