Archegonia …. Egg
Immature Sporophyte
It functions as a haploid food reserve
Haploids …. Meiosis
Cycads Only:
Have palmlike leaves

Ginkgos Only:
Only one living species today
Leaves have fanlike appearance

Gnetophytes Only:
Includes 3 genera that vary greatly in appearance

Confires Only:
All species produce cones

All Gymnosperms:
Seeds do not form in an enclosed structure
Undergo alternation of generations

a.) Meiosis
b.) Mitosis
c.) Haploid
d.) Gametophyte
e.) Pollination
f.) Diploid
g.) Gametophyte
h.) Diploid
i.) Diploid
j.) Sporophyte
Megaspores or Microspores
A plant sporophyte and an adult animal
Ovulate Cone
The Male Gametophyte
Food Supply
Seed Coat
The sporophyte generation is DIPLOID

The embryo is DIPLOID

The gametophyte generation is HAPLOID

The megaspores is HAPLOID

After fertilization of the ovule, the MEGASPORE develops into the food supply.

After fertilization of the ovule, the INTEGUMENT develops into the seed coat.

After the fertilization of the ovule, the FERTILIZED EGG develops into the embryo.

Double Fertilization
Pollen Grains
Seed Coat
Stigma, Style, and Ovary
Anther & Filament
Double Fertilization in the life cycle of seed plants results in the production of a diploid zygote and a triploid endosperm nucleus.

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