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Chorioallantoic Placenta Sign Video

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Definition

A type of placenta that occurs in placental mammals and some marsupials in which materials are exchanged between the embryo and mother through a structure modified from the embryonic chorionic and allantoic membranes.

Source: Hickman, C.P., et al. 2011. Integrated Principles of Zoology. Fifteenth Edition. McGraw-Hill Higher Education.
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