Which of the following are NOT found in the gastrointestinal tract of healthy humans?
A) Bacteroides
B) Clostridium
C) Protists
D) Escherichia coli
Correct Answer:
Verified
Q4: Influenza virus targets
A) oral cavity cells.
B) lung
Q5: Capsules are particularly important for
A) protecting bacteria
Q5: Only particles smaller than _ μm in
Q6: The decrease or loss of virulence of
Q7: Decalcification of the tooth enamel due to
Q8: The following bacteria are all implicated in
Q11: Pathogenic strains of Escherichia coli usually express
A)
Q12: In the absence of the full complement
Q13: Gingivitis is cause by all of the
Q14: Which of these microorganisms is most likely
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