Which best describes horse breeding?
selective pressure in nature has resulted in different horse and pony breeds.
people have selected the most desirable natural traits to produce different horse and pony breeds.
people have manipulated the genome of horses and ponies in the lab to produce the breeds we know today.
different horse and pony breeds are an example of overcompetition.

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.