.Pollination and # fertilization
Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma.
#fertilization is the fusion of gametes to initiate the development of a new individual organism.
Pollination later enables fertilization and the production of seeds, most often by an animal or by wind.
#The cycle of fertilisation and development of new individuals is called sexual reproduction.
in angiosperms, after the pollen grain has landed on the stigma, it develops a pollen tube which grows down the style until it reaches an ovary. Sperm cells from the pollen grain then move along the pollen tube, enter an ovum cell through the micropyle and fertilise it, resulting in the production of a seed.
#During double fertilisation in angiosperms the haploid male gamete combines with two haploid polar nuclei to form a triploid primary endosperm nucleus by the process of vegetative fertilisation.
Pollinating agents such as wind, water, bees and birds are necessary for pollination.
#Male and female gametes are necessary for fertilization to take place