Many features distinguish modern humans from the nonhuman apes. however, only two of these features define hominins. why?
a. proper taxonomic groups are always defined by the traits that all members of the group share.
b. the evolution of hominins involved several different changes that happened at different times.
c. only two of these features evolved early enough to apply to all the hominins.
d. proper taxonomic groups are always defined by the t

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.