9. How do fecundation and
zygote formation occur in
these plants? Do these
processes depend on water?

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The microsporangia in the strobile
rupture at the period of the year
thousands of pollen grains.
their pollen grains are “”
they can be transported the wind
over distances. the pollen grains
fall the female strobiles they
the micropyle and enter pollen
chamber. This process called
pollination.

Within the chamber the
generative cell divides forming
two gametic and the tube cell
forming the pollen tube.
pollen tube penetrates the
gametophyte and the gametic
(also known as sperm ) pass
through the tube; of them unites
with oosphere (the female gamete)
forms the zygote (2n).
fecundation occurs one year
pollination and during thistime
the maturation of the and of the
female takes place.

The fecundation these plants is
independent water. The
gametophytes however entirely
dependent on the (the adult
plant) for and hydration.