Which gland's secretion acts as a lubricant in the male reproductive system?

Which one of the following glands is $NOT$ present in human females?

In rabbits,which of the following are considered ex-abdominal reproductive organs?

The region outside the seminiferous tubules which contains small blood vessels,Leydig cells,and other immunologically competent cells is called $:-$

Which of the following depicts the correct pathway of transport of sperms?

The ejaculatory duct is formed by the union of which of the following?