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1Resident enteric bacteria make it hard for pathogenic organisms to colonize the gut because the large resident population usually out competes the pathogenic organisms for nutrients.
A)True
B)False



2Facultative anaerobes are able to survive outside the large intestine.
A)True
B)False



3The microbial population found in the large intestine is _________, this size makes the isolation of individual pathogens difficult.
A)miniscule
B)relatively small
C)similar in size to the microbial population in the nose
D)enormous



4Which type of media allows only one type of bacteria to grow?
A)Selective media
B)Differential media



5All members of the Enterobacteriaceae family are gram-negative, oxidase positive, and ferment glucose to produce acid.
A)True
B)False







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