Afarmer lost most of his crop last year because of insects. this year he decided to use pesticide kill the insects. however, some of the insects survived the pesticide and have reproduced. the new population of insects is not affected by the pesticide. after several generations, more insects are born that survive the pesticide. what process explains the change in insect population?

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.