An analogous structure is one that: A. comes from a common ancestor, but now has a different function.
B. has the same function in multiple organisms but evolved independently each time, without a common ancestor.
C. no longer serves a function.
D. has exactly a 4 bone type structure, including upper arm, forearm, wrist, and hand/foot.

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.