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DENIUS [597]
3 years ago
13

The body's first line of defense against the invasion of disease-causing microorganisms is

Health
2 answers:
SashulF [63]3 years ago
8 0

Answer: Skin

Explanation:

just trust me on this one

Makovka662 [10]3 years ago
3 0
The immune system is the body's first line of defense against pathogens.
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