Defenses of the GI tract against pathogens include _______.
A) mucus, acid, and saliva
B) secretory IgA and lysozyme
C) peristalsis
D) GALT (gut-associated lymphoid tissue)
E) All of the choices are correct.
Correct Answer:
Verified
Q2: Most of the bacteria involved in periodontal
Q3: There are no infectious agents that can
Q4: Salmonella are _.
A) methane producers
B) motile
C) gram-positive
Q5: The gastrointestinal microbiota has been implicated in
Q6: E. coli O157:H7 secretes shiga exotoxin.
Q8: Cells of the immune system are not
Q9: Despite acidic conditions, some microorganisms have been
Q10: Which of the following statements is incorrect
Q11: The gastrointestinal tract has both a long
Q12: Antibiotics are used to treat diarrhea caused
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