Which of the following is not true of the preliminary findings by the HMP thus far?
A. the number of bacterial genes outnumber human genes by millions in the holobiont
B. microbial antagonism prevents potential pathogens in the resident biota from causing disease
C. there are many more sterile sites in the human than were previously assumed
D. viruses have played an important role in guiding the evolution of both humans and their resident flora
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One of the major differences between the first and second line of defense is that
A. the first line defenses involve the respiratory tract whereas the second line defenses involve the gastrointestinal tract.
B. the first line defenses are anatomical barriers whereas the second line defenses are mechanisms.
C. the first line defenses involve complement proteins whereas the second line defenses involve antibodies.
D. the first line defenses involve complement proteins whereas the second line defenses involve antibodies.
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