Male gametes are also called

What does the head of a mature mammalian sperm consist of?

Sertoli cells are found in the testis. What are these cells called?

During the differentiation of spermatids,they are associated with which of the following?

For normal fertility in males,what percentage of sperms must have normal shape and size,and what percentage of sperms must show vigorous motility?

What is the process of release of a mature female gamete from the ovary called?