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The fattier egg yolk is contained in the yolk sac.
The egg yolk supplies the embryo with energy and nutrients.
The shell protects the developing embryo and allows water retention while still being permeable to gas exchange.
The Amniotic fluid helps provide the embryo with a stable fluid environment.
The membrane in an egg that stores nitrogenous wastes produced by the embryo and facilitates respiration.
The innermost membrane of the fetal membranes of amniotes, the sac in which the embryo is suspended, protects the embryo from shock and carries out hydration.
The chorion allows the exchange of oxygen and carbon dioxide between the embryo and the egg’s external environment.
Amniotic eggs contain albumin, which provides the embryo with water and protein.
The early developmental stage of an animal while it is in the egg.