Group b streptococci (gbs) are known to cause life-threatening disease in some newborns, but are commensals in the adult female vagina. which of the following to explain why gbs acts as a pathogen in newborns and as a commensal in healthy adults? to be marked correct, you'll need to select all applicable statements, as there may be more than one correct answer.

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.