Explain chorioallantois membrane of birds and reptiles, Biology

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Q. What is the chorioallantois membrane present in the embryonic development of birds and reptiles? How does this membrane participate in the energetic metabolism of the embryo?

The chorioallantois membrane is formed by juxtaposition of some regions of the allantois and the chorion. Since it is porous the chorioallantois membrane allows the passage of gases between the exterior and the embryo thus making aerobic cellular respiration possible.


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