Which of the following is not a part of the female reproductive system in human beings?

What is produced by the fusion of a male gamete and a female gamete?

What are the functions performed by the testis in human beings?

The correct sequence of organs in the male reproductive system for the transport of sperms is:

Which organism can change its sex?

$(a)$ Trace the path of sperms from where they are produced in the human body to the exterior.
$(b)$ Write the functions of secretions of the prostate gland and seminal vesicles in humans.