Let's talk about two very important parts of the eggs, which you are probably already very familiar with- the egg yolk and the egg white!
Some people think that it is the yolk that turns into the chick, but that's not the case. The embryo grows from a tiny dot called the germinal disc, and the yolk is the source of nutrition for the embryo as it grows.
The albumen, too, provides nutrition in the form of proteins to turn into tissue. It also provides water to the embryo, and acts as a cushion, too!
Also, today the embryos are growing knee caps! Isn't that nifty?
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