According to the collision theory, which is required for a high number of effective collisions?

a very low amount of force from colliding molecules

a very low amount of kinetic energy from colliding molecules

molecular collisions that have very specific orientations

molecular collisions with energy to overcome activation energy

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.