Evolution 4

Question 1

Cenozoic Era

Answer 1

65 million years - now

Question 2

Plants

Answer 2

diversified and coevolution with pollinators

Question 3

4 steps of natural selection

Answer 3

1. variation will be present 2. some traits will be favored 3. favored is more likely to reproduce 4. genetic variation over generations.

Question 4

monotremes

Answer 4

platypus and echidna

Question 5

marsupial mammals

Answer 5

koala and kangaroo

Question 6

placental mammals

Answer 6

most other mammals

Question 7

Horse 1

Answer 7

Hyracotherium, 60 mya four in front and three in back, small, arched back, omnivore, foot pads not hooves

Question 8

Horse 2

Answer 8

Mesohippus, 40-30 mya, three toes each foot, browsed on woody twigs, slightly larger, larger toe pads, overlapped with hyracotherium

Question 9

Horse 3

Answer 9

Miohippus, 30-25 mya, three toes each foot, some had teeth for forest grazing others grass, longer legs with bones fusing allowing for faster running

Question 10

Horse 4

Answer 10

Merychippus, 15-5 mya, size of modern pony, grass-grazers, side toe of varying sizes, horse-like hoof on center toe and bones fused even more

Question 11

Horse 5

Answer 11

Equus, 4 mya - today, large grass-grazers with a straight spine, long legs with fused bones, single hooves, diversified into several species

Question 12

mass extinction of large mammals

Answer 12

roughly 10,000 ya

Question 13

Australopithecus

Answer 13

4-3 mya

Question 14

Homo Habilis

Answer 14

2.5-1.5 mya

Question 15

Homo Erectus

Answer 15

2 mya - 250,000 ya

Question 16

Homo Sapiens

Answer 16

500,000 ya (archaic) 300,000 ya

Question 17

Homo Neanderthalensis

Answer 17

400,000 - 40,000 ya Europe

Question 18

Denisovans

Answer 18

400,000 - 40,000 ya Asia

Question 19

Han’s Arguments

Answer 19

Intelligent design, no transitional forms, natural selection is bad, all mutations are bad