Which of the following events would be the most interesting to a geologist? san francisco earthquake return of the hale-bopp comet the discovery of uranium the annual migration of humpback whales

What molecule contains an organisms genetic material, passed down from parents to their offspring

Number and variety of living organism; includes genetic, species, and ecological types

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.