Which of the following scenarios involves the introduction of a potentially invasive species? I. The migration of spiders in fruit shipped to the United States from South America
II. The escape of a rattlesnake from a zoo exhibit
III. Picking flowers while on vacation in California and planting them in your garden in Texas
Answers: I and II only. I and III only. II and III only. I, II, and III

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.