Exam 4

Question 1

What is pollen

Answer 1

The male genetic contribution

Question 2

What components make up the ovule?

Answer 2

Megasporangium
Megasporocytes and
Integument

Question 3

What is the difference between pollination and fertilization.

Answer 3

Pollination is when the male genetic component meets the ovary
Fertilization is when the two gametes meet

Question 4

Which groups disperse by spores?

Answer 4

Fungi
Bryophytes
Pterophyta
Selaginella

Question 5

What groups disperse by seeds?

Answer 5

Angiosperms and gymnosperms

Question 6

Which groups have gametophytes that are protected by sporophytes tissue?

Answer 6

Angiosperms and gymnosperms

Question 7

Which groups have flagellated sperm?

Answer 7

Bryophytes and charophytes

Question 8

Which groups produce pollen?

Answer 8

Gymnosperms and angiosperms

Question 9

What is the definition of a meristem?

Answer 9

Is region of totipotenet cells that can continually divide

Question 10

What are the three basic organs that make up a plantB

Answer 10

Stems:they lift and separate the leaves and reproductive structures for seed dispersal
Leaves:photosynthesis
Roots:anchoring the plant and h2o uptake

Question 11

When did primates evolve?

Answer 11

65 Mya

Question 12

Which primate are we most closely related to and when did we diverge?

Answer 12

Chimps

2 Mya

Question 13

What are some key features that paleontologists use to distinguish hominis from all other apes?

Answer 13

The location of the foremen magnum
Brain size
Teeth size
Face shape

Question 14

How do apical meristems know to develop into a shoot or a flower?

Answer 14

Floral meristem identity genes

Question 15

Which hominin species evolved bipedalism?

Answer 15

Autralopithecus

Question 16

Which hominins evolved the large brains first?

Answer 16

Homo erectus

Question 17

Which hominins made the first tools?

Answer 17

Homo habilis

Question 18

Which hominin was the first to migrate out of Africa?

Answer 18

Homo erectus

Question 19

When and where did homo sapien first evolve?

Answer 19

Ethiopia about 200,000

Question 20

Where did hominins first evolveB

Answer 20

Eastern Africa

Question 21

What is the relationship between Homo sapiens and homo neanderthanlensis

Answer 21

Same common ancestor but h sapien did not evolve from h neanderthanlensis

Question 22

What pattern of human migration is the most widely accepted?

Answer 22

Hybridization and assimilation:H sapiens evolved in Africa migrated to Europe and Asia replaced other hominins but there was some hybridization

Question 23

What are some alternative hypothesis about human migration?

Answer 23

African replacement: h sapiens evolved in Africa migrated to Europe and replaced other species
Multinational evolution: h sapiens evolved concurrently in African Europe and Asia with substantial gene flow
Candelabra : evolved independently in Africa Europe and Asia with no gene flow

Question 24

What is the difference between an ovary and an ovule? What do each become?

Answer 24

The ovule becomes the fruit and the ovary becomes the seed. The ovule is the whole thing. Is made up of the microsporangia, microsporocyte and integument. The ovule is inside the ovary