0 dayz.... coz mid cycle is fertilized egg...., enn mid cycle bleeding doesnt occur..., bleeding only occurs on the last dayz of the period..
the cockroach egg take about 19,20 or 21 days.
Don't be silly
The tail of a sperm remains with the head until the sperm goes into the egg to fertilise it.
Because the sperm will die if it doesn't fertilise the egg. Survival at its basics.
sperm
Because it is a mamal
a sperm call job is to find an egg to fertilise
The Menstruation Cycle has a specific beginning, middle, end, and repeats almost the same every month. Bleeding begins/ends, the uterus begins preparing for the egg, the egg is released, if not fertilized the uterus sheds the extra lining... bleeding begins, ends, the "cycle" begins again. A cycle can be off a day or week, or skipped, but when it resumes, it begins the same steps.
Yes they are. They are needed to fertilise the egg.
the sperm cells have to swim to the ovum and then fertilise it. and the egg cells have to reproduvce the offspring
You mean, how do they reproduce? They mate. And they don't lay eggs, they're livebearers.
Only one sperm is required to fertilize an egg. One is both necessary and sufficient in order for an egg to be fertilized. But in order to be confident that one will make it, you need a certain minimum sperm count.