Which term refers to male reproductive cells or gametes?

The term that refers to male reproductive cells or gametes is "sperm." Sperm cells are the male gametes involved in sexual reproduction, responsible for fertilizing female gametes, which are known as eggs or ova. In sexual reproduction, the fusion of sperm with an egg leads to the formation of a zygote, which will develop into an organism.

Ova and eggs are terms that specifically refer to female gametes, while follicles are structures in the ovaries that contain immature ova. Therefore, understanding the roles and definitions of these reproductive terms highlights why "sperm" is the correct designation for male gametes.