The structure that is common in the embryos of mammals, amphibians, birds, fishes and reptiles,...
The structure that is common in the embryos of mammals, amphibians, birds, fishes and reptiles,...
The structure that is common in the embryos of mammals, amphibians, birds, fishes and reptiles, and which is an evidence of their common ancestry is: (A) Eye (B) Chorion (C) Allantos (D) Gill slits?
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