Basicaly it is made of calcium and its compounds
Eggs have a shell on it to stop it breaking
Reptiles, such as turtles, snakes, and lizards, produce eggs with a leathery shell. The leathery shell is flexible and allows the eggs to absorb moisture and exchange gases with the environment. Unlike reptiles, birds and some other groups of vertebrates produce eggs with a hard, calcified shell.
Snail shells are made of ..... drum roll please! ..... keratin!! The same stuff as our fingernails!! :) The mother snail puts her "slime" on the eggs so they can survive!
Yes. Bird eggs are similar in structure to reptile eggs with the main difference being that bird eggs have a hard shell while reptiles eggs have a softer, leathery shell.
a yolk, a white part(soft), and shell and outer shell. :) i've been looking it up all day this is the best I got.
eggs
Ankylosaurs were dinosaurs, and, like all dinosaurs, they would have laid eggs. Like other dinosaurs, their eggs would have had a hard shell made of calcium, like that of a bird, and not a soft, leathery shell like a turtle, snake, lizard, or crocodile egg.
Reptile eggs have shell membranes.
in a shell
No. A pearl is a small round object made from sand being kept in an oyster shell for a long period of time.
No the eggshell of brown eggs is not thicker than the eggshell of white eggs.
NO- the vast majority of the commercial eggs are infertile- the hen never sees a rooster. Fertilization of the egg happend BEFORE the shell membranes and shell are added. Fertilization is not needed to form a shell.