Bacteria which are part of the normal flora may cause disease when the immune system is compromised. this ailment is called a(n)

a > opportunistic infection

b > infectious disease

c > spirochetes

linnaeus is the father of taxonomy

explanation:

which is the system of classifying and naming organisms. one of his contributions was the development of a hierarchical system of classification of nature. today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.