It can fertilize from when you are a young age. Sometimes from the age of 11 and up
Sperm of a fertile male.
NO
You can't.
It doesn't depend on how much of sperm is produced for a man to be fertile but it depends on the quality of the sperm. Many lifestyle factors affect the quality of sperm, eg. Smoking, excessive alcohol intake , temperature at which the testicles are kept at, etc.
the sperm finds a fertile egg and makes a baby
they gave females fertile sperm.
The color of sperm does not affect fertility. Sperm color can vary from clear to white, and factors such as diet, hydration, and overall health can influence its appearance. Fertility is determined by sperm count, motility, and morphology.
The sperm must have an X chromosome as opposed to a Y chromosome.
Yes, however sperm count decreases with age.
Average males usually become potentially fertile (produce sperm) at age 13, however aren't fully fertile until age 14-16. See link in related links.
In males, the testis become larger and can produce mature sperm. in males, the ovaries become fertile. Only fertile sperm and eggs can reproduce.
A young, fit and healthy man has no need to worry about increasing his sperm count. Nature will ensure his sperm count is high.