What is the male sex gland referred to as?

The male sex gland is referred to as the testes. This is because the testes are responsible for producing sperm and hormones, particularly testosterone, which is crucial for male reproductive functions and secondary sexual characteristics. The structure of the testes is designed specifically for the production and maturation of sperm cells, making them the key glands in the male reproductive system.

The other options represent different parts or organs related to the male reproductive system or other functions. The ovary is a female reproductive gland that produces eggs and hormones. The prostate is a gland that contributes to seminal fluid, but it is not responsible for sperm production. The epididymis is a duct that stores and matures sperm but is not a gland itself. Therefore, in the context of male sex glands, the correct identification is the testes, as they are fundamentally involved in male gametogenesis and hormonal production.