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A barrier made up of several layers that stops pathogens from entering the body is a. the skin. b. white blood cells. c. cilia. d. mucus.
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A barrier made up of several layers that stops pathogens from entering the body is

a. the skin. b. white blood cells. c. cilia. d. mucus.

User GustyWind
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1 Answer

4 votes

Answer:

A. The Skin

Step-by-step explanation:

Skin forms a waterproof barrier that prevents pathogens from entering the body.

User Fteinz
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