Puberty.
It is because of the nutrients that comes from each other. They been able to fertilize because of the hormones of each other.
when sperm fertilize ovule then it produce another living cell
Only one sperm cell is required to successfully fertilize an egg.
Many sperm cells are needed to fertilize an egg cell because only one sperm cell can successfully penetrate the egg cell's protective layer and fuse with its nucleus to form a zygote. Competition among the sperm cells ensures that the strongest and healthiest sperm cell is most likely to successfully fertilize the egg.
sperm cells are found in the soil to fertilize the eggs
To fertilize the female egg
chromosomes
The function of a sperm cell is to compete with all it's "fellow" sperm cells to fertilize an available egg and produce a viable offspring.
Impotence is the inability to fertilize an egg. This can occur because the male has a low sperm count or has something wrong with his sperm.
Ovum has a layer of zona pellucida around itself. When a sperm enters the ovum, the cortical granules present in the ovum, causes the thickening of the zona pellucida. This prevents the entry of other sperms in the ovum and only one sperm is able to fertilize the egg.
it makes the sperms move to the egg to fertilize it.
A sperm cell is used to fertilize an egg from a female. The combination of the sperm and the egg produces a fertilized egg which will become a new individual.