(a) A- human male gamete, sperm

B- human female gamete – egg cell/ovum

(b) The process has shown is of fertilization, where the male gametes or sperms have reached the female gamete or ovum, and one of the sperms is ready for fertilization.

(c) During the process of fertilization, there is a fusion of the nucleus of the male gamete (sperm) with the nucleus of a female gamete (ovum), inside the female body. This results in the formation of a zygote, which will further develop into a fetus.