Early in gastrulation, a two-chambered ball of cells on a connecting stalk forms. One chamber is the _____, and the other the _____: the wall between them is the _____, and will actually form the embryo.

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Anatomy refers to the internal and external structures of the body and their physical relationships, whereas physiology refers to the study of the functions of those structures.


1. Early in gastrulation, a two-chambered ball of cells on a connecting stalk forms. One chamber is the _____, and the other the _____: the wall between them is the _____, and will actually form the embryo.