Ultimately, that is where they are It is an egg that is completely closed from all sides. In other words, it’s like they’re in a closed box until they come out.

Agree How do they manage to breathe?

Mammals that develop and grow inside their mothers receive their oxygen from their mothers through the umbilical cord.

However, a chick inside the egg must take in oxygen and emit carbon dioxide. It has no umbilical cord. These processes run differently.

There are two membranes just underneath the eggshells, and the eggs are too hot to touch when laid by the mother. While it cools, the contents of the egg everything shrinks a little.

In this way the two membranes in the lower part are separated from each other a small air pocket or air pocket creates. At the same time, as the chick grows, it develops the allantois structure, a hollow sac that grows in the lower part of the intestines.

This structure works similarly to lung tissue, connecting the chick’s circulatory system to the air outside the egg.

Later, as the embryo develops, it begins to breathe oxygen through this membrane to expel carbon dioxide starts. In addition, the empty part within the allantois structure can also be used to store nitrogenous waste.

In addition to all these, the surface of the egg thousands of microscopic poresallowing carbon dioxide to escape and fresh air to enter. Again, these pores allow the moisture that the developing chick and egg parts need to enter the egg.

In summary: the respiration of chicks in eggs, It is very different from other mammalian babies.

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