How does the microbiome act as part of the innate immune system?
a) As part of the adaptive specific host defense system by producing antibodies specific to the invading pathogens.
b) As part of the adaptive specific host defense system by producing toxins that kill all bacteria and viruses.
c) As a physical barrier by competing with the invading pathogens for nutrients and colonization sites within the host.
d) As a chemical barrier by producing antimicrobial peptides that act against invading pathogens.