A fertilized egg is an egg that is fertilized - in short terms, it can be incubated and a chick will hatch from it after incubation.
If you mean hen's eggs, unfertillised eggs are what are sold in your local supermarket. Fertillised hen's eggs you should be able to get from a local farm.
Her menstrual period
no. one egg is fertilized and it splits up later on.
A hen is older than an egg. *A hen comes from an egg. Either a hen or an egg can be older than one another.
I assume you are referring to humans. If a pregnancy is to be successful the fertilised egg must implant itself in the wall of the womb.
we get a hen in a egg
both
The hen LAYS on the egg
what is the size of the egg layed by hen
It could be both if the hen was born first who made the hen (don't say Jesus!) if it was the egg who laid the egg
The hen goes first because the hen lays the egg.
No one really knows. The egg had to be laid by something (hen), but the hen had to be hatched from something (egg.