Pollination | Fertilization |
| fertilization is the fusion of gametes to initiate the development of a new individual organism. |
| The cycle of fertilisation and development of new individuals is called sexual reproduction. |
| 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. |
| Male and female gametes are necessary for fertilization to take place. |