The three germ layers of triploblastic animals are, starting with the deepest layer, areMultiple choice question.acoeomate, pseudocoleomate, coleomate.ectoderm, mesoderm, endoderm.coleomate, pseudocoleomate, acoleomate.endoderm, mesoderm, ectoderm.

What term best describes animals with three embryonic germ layers?Multiple choice question.EndoblasticEctoblasticTriploblasticDiploblastic

In birds, cells that migrate through the primitive streak into the interior of the embryo become which of the following germ layers?Multiple choice question.Mesoderm or ectodermEctoderm or endodermEndoderm or mesoderm

Which is the innermost germ layer?Multiple choice question.EndodermMesodermEpitheliumEctoderm

Protostomes that have bilateral symmetry and three embryonic germ layers, but that do not possess a coelom or pseudocoelom, are calledMultiple choice question.echinoderms.flatworms.nematodes.cnidarians.

The three primary germ layers in birds and mammals form from cells that migrate through the Blank______.Multiple choice question.neural crestprimitive streakblastocoel cavitylateral fold