In males, the mesonephric duct system 23:33 Biology In males, the mesonephric duct systema. forms the ductus deferens, seminal vesicles, and prostate gland.b. forms the scrotum.c. forms the ureters.d. forms the urinary bladder.e. disappears.Answer: a Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+