what are all characteristics shared by all primates?

Answer 1

Oposable thumb, lungs, bear young alive.

Answer 2

Opposable thumbs are not an exclusive characteristic, possums and raccoons also have those.

All primates, however, have five fingers, fingernails (as opposed to claws), and long, inward closing fingers. All primates have a generalized dental pattern.

Answer 3

Thumbs

Answer 4

http://nationalzoo.si.edu/Animals/Primates/Facts/Primateness/default.cfm
lists:
Forward-facing eyes for binocular vision (allowing depth perception)
Increased reliance on vision: reduced noses, snouts (smaller, flattened), loss of vibrissae (whiskers), and relatively small, hairless ears
Color vision
Opposable thumbs for power grip (holding on) and precision grip (picking up small objects)
Grasping fingers aid in power grip
Flattened nails for fingertip protection, development of very sensitive tactile pads on digits
Primitive limb structure, one upper limb bone, two lower limb bones, many mammalian orders have lost various bones, especially fusing of the two lower limb bones
Generalist teeth for an opportunistic, omnivorous diet; loss of some primitive mammalian dentition, humans have lost two premolars
Progressive expansion and elaboration of the brain, especially of the cerebral cortex
Greater facial mobility and vocal repertoire
Progressive and increasingly efficient development of gestational processes
Prolongation of postnatal life periods
Reduced litter size—usually just one (allowing mobility with clinging young and more individual attention to young)
Most primates have one pair of mammae in the chest
Complicated social organizat

Answer 5

Hands with five fingers and a thumb.
Eyes in the front of the head.

Answer 6

They watch wrestling.

Answer 7

opposable thumbs!