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Alexxandr [17]
3 years ago
11

1. What is the first line of defense against infection for the human body?

Biology
1 answer:
Shalnov [3]3 years ago
7 0

White Blood cells or WBC's are the cells of your immune system. They are your first defense in fighting off foreign invaders and infectious diseases.


-Medical Student (College Level)

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Hello,


The answer is for sure <span>A. O horizon</span>.Positive.


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Answer:

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