Opposite to one other in morphology and function, the ovaries and testes are two distinct organs that produce eggs and sperm, respectively. Although they are both derived from the same sexually neutral gonadal primordium.Ovaries produce a limited number of eggs in females whereas Testes produce millions of sperms in a male.Ovaries are present inside the female body whereas Testes are in the scrotum outside the male body.Ovaries secrete the female hormone estrogen whereas testes secrete the male hormone testosterone.