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Feliz [49]
3 years ago
7

What is an example of a mechanical barrier for our immune system?

Biology
2 answers:
dybincka [34]3 years ago
6 0

Answer:

a skin

Explanation:

Mechanical barriers physically block pathogens from entering the body. The skin is the most important mechanical barrier. In fact, it is the single most important defense that the body has against pathogens

navik [9.2K]3 years ago
5 0

I think it is nose hairs because it keeps harmful things from entering through your nose.

Answer is B.

*Please correct me if I am wrong.

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