Biology

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Excluding the echinoderms, all the animals in group 2 (birds, mammals, fish, amphibians) have which of the following characteristics in common?

A)protostome embryo, coelom, radial symmetry, dorsal nerve cord

B)protostome embryo, no coelm, bilateral, ventral nerve cord

C)deuterostome embryo, coelom, bilateral, dorsal nerve cord

D)deuterostome embryo, pusedocoelom, asymmetry, ventral nerve cord

E)deuterostome embryo,no coelom, radial, dorsal nerve cord

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