(a) In the human body, what is the role of (i) seminal vesicles, and (ii) prostate gland?
(b) List two functions performed by testes in human beings.

(a) Function of seminal vesicles and prostate gland are as follows:

(i) Seminal vesicle: Secretion of the seminal vesicle is in the form of fluid seminal plasma that makes the transport of sperms lubricated and smooth.

(ii) Prostate gland: It secretes prostatic fluid that nourishes sperms to keep them alive and assists sperms to swim vigorously.

(b) Two functions performed by testes in human beings are:

(i) Formation of sperms

(ii) Secretion of the hormone testosterone to regulate the formation of sperm and are responsible for developing secondary sexual characteristics in boys during puberty.