Primates are characterized by their ___ which contributes to their dexterity.

Dexterous hands

True or False: Primates are predominantly found in the polar regions.

False. Primates primarily inhabit tropical and subtropical regions.

The classification of primates includes two sub-orders: Prosimii and ___ based on brain size.

Anthropoidea

What distinguishes New World monkeys from Old World monkeys?

New World monkeys are distinguished by their different nose structures.

The characteristics that define the order Primates include three types of teeth, presence of clavicles, and ___ as a specialized feature.

Opposability of the thumb

True or False: All mammals, including primates, share the development of a posterior lobe of the brain.

False; only primates possess a posterior lobe of the brain as a specialized character.

Fill in the blank: The infra orders of Prosimii include Tupaiiformes and ___ .

Lemuriformes

Primates like Tupaia, Lemur, Loris, and Tarsius belong to which suborder?

They belong to the suborder Prosimii.

True or False: Anthropoids have a simpler brain structure compared to Prosimians.

False. Anthropoids have a more complex brain structure than Prosimians.

The dental formula for many species in Prosimians is usually ___:___:___:___.

2:1:3:3

True or False: The thumb in Platyrrhini is usually opposable and of significant size.

False; the thumb is not opposable and usually small or absent.

What is a key anatomical difference between Platyrrhini and Catarrhini regarding their molars?

Platyrrhini usually have squarish molars and premolars, while Catarrhini do not.

Gibbons belong to the family ___ and are classified within the larger group of ___ which includes chimpanzees, gorillas, and orangutans.

Hylobatidae; Pongidae

True or False: Humans have a more developed use of hind limbs compared to apes.

False; Humans have a more developed use of forelimbs, while hind limbs are comparatively less developed.

The foramen magnum and occipital condyle in humans are positioned ___ compared to apes, indicating ___ posture.

Lower and forward; bipedal