on December 23, 2019
Since "Bacteria that benefit human beings when they are present in the body are called commensals," then wouldn't C strengthen the arguement by saying that M. tuberculosis doesn't provide a benefit for people that harbor it. The conclusion is that it isn't a commensal. If the author argued that it was a commensal then this would weaken it but he doesn't. If I were to weaken the arguement wouldn't I want to prove that it is a commensal? Let me know if I am way off base here, thanks!
Annie on December 24, 2019