Zero. Sperm is not needed for intercourse.
The chromosomes need to be XY during intercourse. There's millions of sperm in a male, and its random for the baby's sex.
The sperm from a male penis fertilises the female egg. You need sexual intercourse to enable the sperm get to the egg (which makes a baby.)
No, you need sperm to get pregnant. Masturbation is pregnancy-free!
Have unprotected sexual intercourse with a fertile male !
Yes, you do.
no. sperm can live outside the male body for up to 72 hours
Each child starts from a egg in the mothers womb. In the males body is sperm, in order to make that egg come to life, you need the fathers sperm. That process can only be done by sexual intercourse.
male sperm and female eggs.
yes all eggs need to be fertilized by a male's sperm in order to create life
You need the right mood for it to happen.
To kill the sperm, you would need to purchase spermicide and put it into the vagina before having intercourse. Drinking salt water will not have any effect whatsoever.
Sperm needs to be deposited inside the vagina during sexual intercourse for pregnancy to occur.