Final answer:
Primates are organized and classified based on their characteristics and evolutionary relationships. They are divided into two groups: prosimians and anthropoids.
Step-by-step explanation:
Primates are organized and classified based on their characteristics and evolutionary relationships. The order Primates includes lemurs, tarsiers, monkeys, and apes, including humans. They are divided into two groups: prosimians and anthropoids. Prosimians, such as lemurs and tarsiers, tend to be nocturnal and smaller in size, while anthropoids, including monkeys and apes, are larger and have relatively larger brains.