Which of the following is not an anthropoid?

a. Lemurs

b. Monkeys

c. Apes

d. Humans

Order Primates of class Mammalia includes lemurs, tarsiers, monkeys, apes, and humans. Non-human primates live primarily in the tropical or subtropical regions of South America, Africa, and Asia. They range in size from the mouse lemur at 30 grams (1 ounce) to the mountain gorilla at 200 kilograms (441 pounds). It is divided into two groups: prosimians and anthropoids.

Prosimians include the bush babies of Africa, the lemurs of Madagascar, and the lorises, pottos, and tarsiers of Southeast Asia. Anthropoids include monkeys, apes, and humans. Hence, option (a) is the correct answer.

b. Monkeys

Monkeys are Anthropoids. Hence, option (b) is the incorrect answer.

c. Apes

Apes are Anthropoids. Hence, option (c) is the incorrect answer.

d. Humans

Humans are Anthropoids. Hence, option (d) is the incorrect answer.