The structure in the amniotic egg that stores waste.
Wednesday, March 22, 2023
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Question: The structure in the amniotic egg that stores waste.
The allantois is the structure in the amniotic egg that stores waste. It is a membranous sac that grows out of the embryo's hindgut and eventually fuses with the chorion to form the chorioallantoic membrane. The allantois collects metabolic waste, including nitrogenous compounds, from the developing embryo and transports it to the chorion for disposal. In some species, such as birds, the allantois also plays a role in gas exchange and calcium regulation.
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