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Which of the following are protective barriers that are part of the body's immune system​
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Which of the following are protective barriers that are part of the body's immune system​

User Ajaaskel
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The skin, mucous membranes, and endothelia throughout the body serve as physical barriers that prevent microbes from reaching potential sites of infection. Tight cell junctions in these tissues prevent microbes from passing through.
User Chuck Savage
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