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Question
Obligately anaerobic normal flora are found in ________, which is an/are anoxic habitat(s) of the body.A) the kidneys
B) the skin
C) portions of the oral cavity
D) the lungs
Answer
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Which of the following statements about chlamydial infections is TRUE?
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An individual usually expresses ________ structurally distinct allele(s) that encode class I MHC proteins.
A) one
B) two
C) four
D) six