Multiple Choice
What is the function of normal biota of the respiratory tract?
A) competes with pathogens for resources and space
B) microbial antagonism
C) provides antibodies
D) Both [competes with pathogens for resources and space] and [microbial antagonism] are correct.
E) [Competes with pathogens for resources and space],[microbial antagonism],and [provides antibodies] are correct.
Correct Answer:

Verified
Correct Answer:
Verified
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