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A type of egg is composed of a protective shell and membranes that surround the developing embryo is an egg
your mom dude \
Reptiles were the first group whose eggs cushioned the embryo in fluid and protected it with membranes and a shell. This prevents eggs from drying out and allows them to be laid away from water.
It is to protect the embryo inside the egg.
The membranes that line the inside of the shell are the inner membrane and the outer membrane. While the membrane surrounding the yolk is called the Vitelline membrane the two on the inside of the shell are not specifically named.
There are actually quite a few parts of a chicken egg. The chicken egg includes the embryo on the inside and the shell on the outside.
It gives the embryo oxygen it needs to survive in the egg.
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.
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.
Inside, the outside is just a shell lOVe. x
If eggs are infected by salmonella, the bacteria is inside the egg, not outside on the shell.