Which of the following best describes a dichotomous key?

A. Uses a branching diagram called a cladogram to show relationships

B. Identifies plants by a series of choices between pairs of alternatives

C. is the systematic arrangement of plants into groups and subgroups based on common characteristics

D. Is a type of plant classification which uses a hierarchy system for classification

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.

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things

This is collection of data made by comparing objects in standard units. in science, the units are metric.