What is the y-5 dental pattern

Answer:

A dental specialization with a y-shaped groove ..."Hominoids' pattern of lower molar cusps"

What exactly does DNA do anyway?

Answer:

It provides the genetic code for an organism that will map out the functions and structures of an organism.

What are the dental formulas of catarrhine and platyrhine primates?

Answer:

platyrhine = new world monkeys UPPER 2.1.3.2 or 2.1.3.3 LOWER 2.1.3.2 or 2.1.3.3

catarrhine = old world monkeys UPPER 2.1.2.3 LOWER 2.1.2.3

What was the conclusion of the famous 1970's genetic survey by Robert Lewontin?

Answer:

After Lewontin tested the race concept by studying global genetic variation he concluded that most variation occcured across human populations regardless of their "racial" makeup therefor human "races" have no taxonomic significance.

What is a honing complex?

Answer:

Honing complex refers to the space between two teeth (diastema) to accomodate large upper canines which humans do not have.

Name three aboreal adaptations found in primates

Answer:

Generalized Skeletal Structure - the bones that make up the shoulders, upper limbs, lower limbs, and other major joints like hands and feet are separate allowing flexibility when moving through trees.
Enhanced Touch - they have an enhanced sense of touch, due to the presence of fingerprints and tow prints on the inside of their hands and feet for better gripping.
Enhanced Vision - increased depth perception and seeing in color.

What group of primates have prehensil tails?

Answer:

Prehensile tails are common in New World Monkeys.
Atelines are the only primates with a fully prehensile tail.
Pg . 180-181

Name four kinds of prosimians and where they live.

Answer:

Prosimians- (Lorisiformes) lorises and galagos. (Tarsiiformes) tarsiers (Lemuriformes) lemurs. Lenmurs are found on the Island of Madagascar. Lorises live in Africa and Southeast Asia, and galagos live in Africa. Tarsiers, live in Southeast Asia.

name two ancestral features in humans, and two derived

Answer:

Derived Characteristics - Ability to speak a language, large brains
Ancestral Characteristics - Opposable thumbs, forward facing eyes

Name some differences between monkeys and apes

Answer:

Apes have larger brains, broad faces and premolars with little occlusal surface relief. All have the canine premolar honing complex. None have an external tail.
Monkeys have highly dexterous fingers, external tail.