If you mean the parts of the 'inside', that includes the yolk (which is the yellow portion). The white portion is the albumen.
The white, or ablumin part of the egg.
Usually there is only one egg yolk in an egg. But there have been nine found in one egg.
Because that is what the babies inside the egg eat as they are forming
The yolk is basically the food supply for a developing chick, and the white is the protective membrane and cushion to protect the chick. As the chick grows in the egg, the yolk gets used up, and the...
Well frog eggs are clear with black yolks. They come in hundreds though!