The first line of defense involves which structure(s)?

asked Mar 14, 2020 74.7k views

1 vote

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2 votes

Answer: B / Skin

Explanation:It's the ansewr

Cristian Porta answered Mar 15, 2020

5.2k points

4 votes

Answer:

Skin

Step-by-step explanation:

Volkerschulz answered Mar 20, 2020

5.3k points

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