platypus and spinney anteater
Any animal that hatches from a shell comes from an embryo. Actually any animal at all comes from an embryo. But the most common animal you would think of would be a chick.
It is to protect the embryo inside the egg.
nothing
The animal inside them. As the animal grows the shell must be grown to protect it.
It gives the embryo oxygen it needs to survive in the egg.
because i don't no ignore that person, it is called a cotyledon :]
The developing embryo takes its nourishment from the yolk inside the egg. The embryo doesn't need air until it is ready to break out of its shell.
The bird embryo develops inside the protective shell of the egg, using the egg yolk as a source of energy and materials from which it will develop.
To protect the embryo inside it until it is fully grown and can hatch its own way out der
The embryo of a chicken egg is right below the shell.
The answer is , The Shell.
The chickens egg shell is comprised of calcified shell and shell membranes called vitaline including inner and outer membranes. The organic matter of an egg shell contain proteins, carbohydrates, lipids, Uronic acid, calcium carbonate (94%) and magnesium carbonate.