Ovulation in mammals refers to

During oogenesis,each diploid oocyte produces:

At which stage of spermatogenesis does the sperm acquire a mature structure with a nucleus and other organelles?

When a male ejaculates sperms during coitus,for normal fertility,at least ....... percent of sperms must have normal shape and size,and at least ........... percent of them must show vigorous motility.

What is the function of $LH$ in males?

Young boys at puberty start growing facial hairs. This is an example of