αnswer :-

~Sexual reproduction

• Sexual reproduction involves the fusion of the female and male reproductive cells to form a fertilized egg that grows into an organism.

• The male sexual organs produce the sperm cells

• The female sexual organs produce the egg cells ( also called ova )

• During the sexual reproduction the sperm and ovum fuse together to form a third cell known as zygote. The fusion of sperm ad ovum is called fertilization. The zygote is the first cell of the new organism. It changes over the period of time to form the new organism.

~Reproduction in Humans

• HUMAN reproduction involves two sexes - male and female. Each sex has a different reproductive system. Fertilization is internal, and the development of zygote into a fully formed INDIVIDUAL also occurs inside the body of the female.

~Fertilization

• After the sperms are DEPOSITED into the mother's womb , the sperms swim into the UTERUS and up the oviducts. If an ovum is present in oviduct, one of the sperm may fuse with the ovum and fertilization takes place.