lesson 6

Question 1

structure and evolution of flowers

Answer 1

-flowers evolved in angiosperms
-morphology
*complete flower
*incomplete

Question 2

trends in floral specialization/ symmetry

Answer 2

-fusion
-reduction
-radial symmetry
-bilateral symmetry

Question 3

gamete production

Answer 3

-alternation of generation
*diploid and haploid generation
*pollen grains
=microgametophytes
*embryo sac
=megagametophytes

Question 4

gametophytes

Answer 4

-embryo sac
*8 nuclei
*7 cells
-pollen grain

Question 5

pollination

Answer 5

-self-pollination
*ecologically advantageous
-outcrossing
*separation of male and female structures
*monoecious
*dioecious
*dichogamous
*self incompatibility

Question 6

pollinators and angiosperms co-evolution

Answer 6

-bees
-insects other than bees
-birds
-small mammals
-wind

Question 7

angiosperms and double fertilization

Answer 7

-fertilization of egg
-formation of endosperm (3n)

Question 8

embryo developent

Answer 8

-endosperm and embryo
-3d body plan
-suspensor

Question 9

food reserves and embryogenesis

Answer 9

development of
-food supply
-seed coat
-fruit surrounding seed

Question 10

fruits are adapted for dispersal

Answer 10

-fleshy
-dry
-aggregate
-multiple

Question 11

asexual reproduction

Answer 11

-apomixis and diploid embryos
-vegetative reproduction
*runners/ stolons
*rhizomes
*suckers
*adventitious plantlets
*somatic enmbryogenesis