The predominant organisms in vaginal secretions from normal prepubescent girls and postme-nopausal women are:
a. lactobacilli.
b. S. agalactiae.
c. Enterobacteriaceae.
d. staphylococci.
D
The lining of the normal human genital tract is a mucosal layer made up of transitional, columnar, and squamous epithelial cells. Various species of commensal bacteria colonize these surfaces, causing no harm to the host except under abnormal circumstances and helping prevent the adhe-rence of pathogenic organisms. The flora of the female genital tract varies with the pH and es-trogen concentration of the mucosa, which depends on the host's age. Prepubescent and postme-nopausal women harbor primarily staphylococci and corynebacteria (the same flora present on surface epithelium).
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Indicate whether the statement is true or false
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Which statement best describes h2 (narrow-sense heritability)?
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