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.
Mitosis produces two identical cells.
Hope this helps! (:
Your medical records contain the basics, like your name and your date of birth. They also include the information you give to your family physician, dentist, or other specialist during an exam.
