CH 30

Question 1

When did seed plants originate?

Answer 1

360 mya

Question 2

Seed

Answer 2

Embryo and food in protective coat
-allowed domination

Question 3

When were seeds cultivated?

Answer 3

13,000 years ago

Question 4

Seed plant characteristics

Answer 4

• reduced gametophytes
  -heterospory

Question 5

Ovules

Answer 5

Female gametophyte develops inside and produces egg

Question 6

Pollen

Answer 6

-male gametophytes in sporopollenin wall
-dispersed via multiple vectors over long distances

Question 7

Progymnosperms

Answer 7

Had some seed plant characteristics
-adapted to drier conditions

Question 8

Monoecious

Answer 8

Both sexes in one plant

Question 9

Diecious

Answer 9

One sex per plant

Question 10

Flowers can be. . .

Answer 10

Complete (all 4 specialized leaves) or incomplete

Question 11

When did angiosperms and gymnosperms diverge?

Answer 11

305 mya

Question 12

Basal angiosperms

Answer 12

-least derived
Ex: water lilies, amborella, trichopoda star anise & relatives

Question 13

Magnoliids

Answer 13

-more closely related to Monica’s and eudicots than basal
-woody and herbaceous
Ex: avocado, magnolias and cinnamon

Question 14

Monocots

Answer 14

One cotyledon
- 1/4 of angiosperms

Question 15

Eudicots

Answer 15

-two cotyledons
-2/3 of angiosperm spp.