Answer: Urethra
Explanation:
The urethra is a tube like structure which performs the function of excretion as well as copulation. It carries the urine stored inside the bladder to the outside the body. During copulation, the semen is ejected from the urethra inside the female external genitalia that is vaginal canal. The urethra prevents the flow of urine and it just allows the ejaculation of semen during copulation.
