Human Evolution Flashcards
1
Q
vertebrates
A
chordates with a backbone
2
Q
gnathostomes
A
vertebrates with jaws
3
Q
tetrapods
A
gnathostomes with limbs and feet
4
Q
amniotes
A
tetrapods with eggs and adapted for land
5
Q
mammals
A
amniotes with hair and that lactate
6
Q
eutherians
A
placental mammals
7
Q
primates
A
eutherians with hands and feet adapted for grapsing
* no claws
* large brain
* short jaws
* stereo vision
8
Q
anthropoids
A
primates with a somewhat opposable thumb
9
Q
HOMINOIDS
A
anthropoids with a fully opposite thumb- apes and HUMANS
10
Q
Chimpanzee brain size
A
small brain 400cc
11
Q
human brain size
A
large brain
14-1600cc
12
Q
bipedalism
A
the ability to walk
13
Q
earliest hominins
A
A. afarensis
4.5-4 mya
fully bipedal
14
Q
functional morphology of A. afarensis
A
- brain bigger than chimpanzee
- small incisors and big molars (tough food?)
- bipedal abilities
- protruding jaw
15
Q
manual dexterity in humans
A
power grip
precision grip
