Image from here.Įumetazoa have simple muscles and nerves that enable animals to move. The two phyla with the radial body plan like a pumpkin are called the radiata, and they make up one branch of the eumetazoa. A human head has a clearly defined left, right, back, and front. If you think about the shape of a pumpkin, there's a top and a bottom, but no left, right, back, or front. Like the difference between a pumpkin and a human head. Eumetazoans have tissues that develop from the germ layers of the embryo, and there are two basic body styles that are defined by our symmetry, either radial or bilateral. This is the beginning of the rest of the animal kingdom, the eumetazoa, or "true animals" (we eumetazoans are a little biased). Polyps and Medusas Muscles and Nervous Systems and Organs, Oh My
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