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Masteriza [31]
3 years ago
15

Which one is a type of barrier

Biology
1 answer:
Nadusha1986 [10]3 years ago
6 0

Chemical barrier

Sweat, tears, mucus, and saliva break down and destroy pathogens. There are chemicals in the body excretions that are breaking down pathogens.

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Answer:

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Explanation:

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4 years ago
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