No they do not. Even if they did, they live in water so. Hope this helps!
We have 5 vital organs heart kidneys liver and lungs. The human brain is the body’s control center so it’s a major role in the human body.
Because semen swims upstream. The bladder is not located above the vagina (internally). If the ejaculation takes place in the vagina, the semen will swim up towards the cervix.
Without consistency there will be no consistent results