Question

Definition of fertilization

Answer 1

fertilization is the process of fusion of the male gamete(sperm) with the female gamate (ovary) which leads to zygote formation

Answer 2

after entering the ovary , the pollen tube releases male gametes which fuse with female gametes to form a zygote . this process is called fertilization.

in short: the fusion of male and female gametes to form a zygote is called fertilization.