Which two primary functions occur in the cone-shaped lobules of the testicles?

The two primary functions that occur in the cone-shaped lobules of the testicles are spermatogenesis and testosterone secretion. Spermatogenesis is the process by which sperm cells are produced, which takes place primarily in the seminiferous tubules located within these lobules. These tubules are the site where germ cells undergo division and differentiation to eventually form mature spermatozoa.

In addition to spermatogenesis, the Leydig cells, which are found in the spaces between the seminiferous tubules, are responsible for producing testosterone. This hormone plays a critical role in the development of male secondary sexual characteristics, influences spermatogenesis itself, and has various effects on overall male health and physiology.

The other options include functions that are not relevant to the testicles. For example, egg production and hormonal regulation pertain to female reproductive functions, while fertilization and egg storage are also associated with female reproductive anatomy. The maturation of sperm occurs in the epididymis, not in the testicular lobules. Therefore, option A accurately captures the essential functions of the testicular lobules in male reproductive biology.