Discuss the internal and external structure of the testise​

Each testicle is covered by tough, fibrous layers of tissue called the tunica. The outer layer is called the tunica vaginalis and the inner layer is called the tunica albuginea. The testicle is divided into parts called lobules. Each lobule contains tiny U-shaped tubes called seminiferous tubules.

^•^ gladly correct me if I'm wrong ~•~

i'd say that the moon rock is about 2.2 billion years old.

the correct answer to this question is #5