The lactobacilli, in their role as normal flora of the vagina, help the vagina resist infection by contributing to
A. the neutrality of the vaginal mucus.
B. acidity of the vagina.
C. food for the resident vaginal flora.
D. fertility of the host.
B
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What will the ozone layer absorb?
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In contrast to sulfur mustard, lewisite and phosgene oxime exposures:
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Which of the following are fetal membranes? (Check all that apply.)A) ChorionB) EndometriumC) AllantoisD) AmnionE) Yolk sac
What will be an ideal response?