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Hagfish,lampreys,gnathostomes,mammals,birds,fish,reptiles,and Amphibians Are All Vertebrates and Are Sometimes Referred to as the Subphylum

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Hagfish,lampreys,gnathostomes,mammals,birds,fish,reptiles,and amphibians are all vertebrates and are sometimes referred to as the subphylum Craniata: animals with a cranium.Amphioxus and ascidians are not in Craniata.How does mapping characters associated with the neural crest assist us in understanding the evolution of complex traits?
Hagfish,lampreys,gnathostomes,mammals,birds,fish,reptiles,and amphibians are all vertebrates and are sometimes referred to as the subphylum Craniata: animals with a cranium.Amphioxus and ascidians are not in Craniata.How does mapping characters associated with the neural crest assist us in understanding the evolution of complex traits?

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The neural crest is directly associated ...

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