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Structure of the PROMOTION table
-Based on the structure of the PROMOTION table,which of the following commands will add a PRIMARY KEY constraint to the GIFT column?
Hindgut
Caudal or terminal part of the embryonic gut.
Cloaca
In early embryos, the endodermally lined chamber into which the hindgut and allantois empty.
Coelom
The fluid-filled cavity within the body of most multicellular animals, surrounded by a mesothelium, that houses and protects internal organs.
Allantois
An embryonic membrane involved in the early fluid exchange between the embryo and the yolk sac.
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