question_answer

What are the functions of testis in the human male reproductive system? Why are these located outside the abdominal cavity? Who is responsible for bringing about changes in appearance seen in boys at the time of puberty?

Answer:

Functions of testis:

(i) Produces sperms

(ii) Produces male hormone; testosterone.

Testis are located outside the human body, as sperms need lower temperature than the normal body temperature to mature.

Testosterone is responsible for bringing change at the time of puberty in boys.