In cladistics, _______________ is(are) the primary criterion used to classify organisms.
A) ecological niche
B) common ancestry
C) mating behavior
D) observable traits
E) All of the answer choices are correct.

Question

Quizplus · Accepted Answer

Cladistics is based on the principle of common ancestry, where organisms are classified based on their evolutionary relationships and shared ancestry. This is determined by analyzing their physical and genetic traits and comparing them with other organisms. Ecological niche, mating behavior, and observable traits may be used to support or corroborate an evolutionary relationship, but the primary criterion is always common ancestry. Therefore, option B is the best choice.

In Cladistics, _______________ Is(are) the Primary Criterion Used to Classify