_______ are barriers to pathogens at body surfaces. a. Intact skin and mucous membranes b. Tears, saliva,

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_______ are barriers to pathogens at body surfaces.

a. Intact skin and mucous membranes

b. Tears, saliva, and gastric fluid

c. Resident bacteria

d. All are correct

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Human Biology

ISBN: 9781305264540

11th Edition

Authors: Cecie Starr, Beverly McMillan

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Question Posted: Dec 12, 2023 02:08 AM

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_______ are barriers to pathogens at body surfaces. a. Intact skin and mucous membranes b. Tears, saliva,

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Human Biology

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