Which bacteria help keep the vaginal pH below the range of tolerance of other bacteria and most fungi?
A. Corynebacterium diphtheriae
B. Lactobacillus
C. Clostridium botulinum
D. Proteus
E. Moraxella
Answer: B
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In general, molecules made mostly of carbon atoms covalently bound to each other and to other atoms
are called ____.
a. hydrocarbons b. carbohydrates c. polymers d. functional groups e. organic molecules
Human immunodeficiency virus (HIV) is classified as
A. a retrovirus. B. a liver carcinogen. C. a skin-touch transmissable virus. D. responsive to antibiotics. E. a general mammalian infectious virus.
Which of the following is diploid in the life cycle of
a basidiomycete? a. spore b. dikaryotic hyphae c. zygote d. gamete e. mushroom
Which gasses are considered "greenhouse gasses"?
a. carbon dioxide b. ozone c. methane d. nitrous oxide e. all of these