Embryo
No. Unless the egg is fertilized and incubated it is simply an egg. Life does not begin until the germinal disk has begun to grow. Eating an egg is not "killing" a chicken. The collection of materials within an egg has no life until all conditions are optimum for life to begin.
See the related Wikipaedia link for detailed information.
a young chicken develop because of the sperm cell and the egg cell
No. It is impossible.
Yes, If you had a fertilized egg it would be developing into a chick. Unfertilized eggs are the ones you buy in the stores.
There is no nutritional difference between a non fertilized egg and a fertile egg. You will not see a difference either as the germinal disk is so small it is almost invisible. Most farms with small flocks have a rooster among the hens and they sell the freshest eggs you will ever eat.
A single cell that will develop into a chicken or rooster
Embryo is formed in germinal spot of yolk .
Evolutionary biologists believe that the chicken evolved from a bird that was not quite a chicken, so the egg that hatched the first true chicken would have been laid by a bird that was very similar to a chicken. In this sense, the chicken egg came first.
No. Freezing kills the germinal disc and prevents growth after thaw. The frozen egg will also expand and crack making it impossible to incubate.
The germinal disc is located on the yolk, so that is where the initial cellular division takes place. But a chick can not develop with out both the yolk and the whites (albumen). The yolk is a high concentration of fats which provides energy for growth where as the albumen is high in proteins also needed for tissue growth.
Maybe called as a egg cell