Kill it. maybe
Yes, sperm can enter the uterus without fertilizing the egg. Just because a woman is fertile doesn't mean she will fall pregnant, there are a LOT of things that can go wrong to prevent pregnancy such as poor sperm quality or there not being enough sperm reaching the egg to fertilize it.
no
coming
No.
A worm is not self fertilizing because the reproductive semen and egg have no way of having coffee (meeting)
yes males have egg cells produced from sprem. from a male.
yes males have egg cells produced from sprem. from a male.
Sperm cell.
Sperm fertilizing an egg.
capacitation
To fertilize an egg as part of the process of reproduction.
at most 24 hours