the spore is retained in the ___ and develops into the ___. so the ___ develops inside the ___.
sporophyte
gametophyte
gametophyte
sporophyte
single celled and very tough
spores
an embryo with a food supply and a protective coat
seed
Megasporangia
- microspores develop into male gametophytes (pollen grains) that contain sperm
Microsporangia
___ are sporophyte tissues
-the seed coat is derived from these
integuments
the combination of integuments, nucellus (megasporangium), and megaspore
ovule
once a pollen grain lands on an ___, it extends a ___ ___ into the ___ ___ fertilizing it
ovule
pollen tube
egg nucleus
seed plants are divided into two groups…
gymnosperms
angiosperms
___ means naked seeds
gymnosperm
phylum cycadophyta
cyads
woody
phylum Ginkgophyta
ginkgos
fleshy, fruit-like
separate
phylum coniferophyta
conifers cone gymnosperms cuticles drought woody, lignified
conifers include the ___, an odd order of plants that were originally placed in their own phylum
Gnetales
means seed born in a vessel
angiosperm
anthophyta
___ include grasses, sedges, lilies, irises, palms, orchids, and others. flower parts in threes or multiples of three
monocots
___ contains most of the old dicot, this includes roses, beans, oaks, maples, asters, buttercups, and many more. Flower parts in fours or fives or multiples of four or five
eudicots
the new classes of the phylum anthophyta (3)
water lilies
magnoliids and relatives
star anise and relatives
___ ___ is the most “primitive” living flowering plant and belongs in a class by itself
amborella trichopoda
xylem cells in angiosperms and gymnosperms that provide support and transport water
tracheids
xylem cells in most angiosperms
-A. trichopoda does not have these
vessel elements
the ___ is the reproductive structure of flowering plants
flower
___ flowers are pollinated by animals
___ flowers are wind pollinated
showy
plain