A commensal bacterium
A) may also be an opportunistic pathogen.
B) is beneficial to its host.
C) does not receive any benefit from its host.
D) does not infect its host.
E) is beneficial to, and does not infect, its host.

Question

Quizplus · Accepted Answer

Commensal bacteria can become opportunistic pathogens if the host's immune system is compromised or if they gain access to normally sterile areas of the body.

A Commensal Bacterium