This depends upon the environment. If the male ejaculates into the air, articles of clothing, etc the sperm will die pretty soon. If the male ejaculates into a female, it can last up to three days, sometimes longer but not usually. This is because a warm and moist place is a prime survival environment for sperm.
I dont know much about x or y sperm but i do know sperm can survive up to 72 hours my doctor told me that.
The tail of the sperm whips and forces the sperm forward. Y sperm are smaller, lighter and faster, X sperm are larger, heavier and slower but can keep going for longer. Y sperm are sprinters, X sperm are long distance runners.
They are longer.
A centrifuge can separate the heavier X-bearing sperm from the lighter Y-bearing sperm.
it is 4 x longer
Yes.
3 yards is equal to 30.48 x 3 x 3 = 274.32 centimetres. This is 14.32 centimetres longer than 260.
Sperm have both x and y chromosmes and it would be immpossible to try and kill the y without killing the x
Ultraviolet light is.
No. 9 x 3 x 12 = 324
Yes. Sperm carry either an X or a Y chromosome. The eggs from a female's ovaries is always X. If the sperm has an X chromosome, the baby will be female. If the sperm has a Y chromosome, the baby will be male.