Look at the diagram of the solar system. the solar system shows the sun and planets in their orbits around earth in this order: moon, mercury, venus, sun, mars, jupiter, saturn. what observation did this geocentric model of the solar system to explain? orbit speed the phases of venus retrograde motion the rising of the sun

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.