In accordance with the principle of parsimony, scientists
A) propose phylogenetic trees that minimize the number of evolutionary changes.
B) adopt phylogenetic trees in which adaptations repeatedly arise, disappear, and reappear.
C) construct phylogenetic trees with many small clades rather than with a few major clades.
D) utilize the Linnaean system of nomenclature rather than common names.

Question

Quizplus · Accepted Answer

The principle of parsimony, also known as Occam's razor, states that the simplest explanation is usually the correct one. In phylogenetic analysis, this means that the tree with the fewest evolutionary changes is the most likely to be accurate. Therefore, scientists tend to propose phylogenetic trees that minimize the number of evolutionary changes (choice A).

In Accordance with the Principle of Parsimony, Scientists