Derived characteristics that define the order Primate include
A) bipedalism.
B) increased dependence on complex behavior, learning, and behavioral flexibility.
C) specialized molars, up to six incisors, and a lack of premolars.
D) highly developed olfaction (sense of smell).

Question

Quizplus · Accepted Answer

Bipedalism is a characteristic of some primates, but it is not a defining characteristic of the order Primate. Increased dependence on complex behavior, learning, and behavioral flexibility is a defining characteristic of primates and sets them apart from other mammals. Specialized molars, multiple incisors, and a lack of premolars are dental characteristics of some primates, but not all, and do not define the entire order. Highly developed olfaction is not a defining characteristic of primates; in fact, some primate species have relatively poor sense of smell compared to other mammals.

Derived Characteristics That Define the Order Primate Include