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Keywords from Image Description:
Origin of Vertebrates Fig . Fig Diagrams to illustrate the Development of the Vertebrate Clom After van Wijhe central nervous system Nc notochord Ao aorta Mg midgut My myocle Mes mesocle Met metacle Hyp hypomere pronephric and My myotome Mes mesonephros segmental duct pronephric Met body cavity The Origin of Vertebrates org Walter