differnece between triplblastic and diplblastic animals
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Diploblastic: 1. Body wall develops from two embryonic germ layers- ectoderm and endoderms and persists as such in adult. 2. Non- cellular, gelatinous mesogloea is present in between ectoderm and endoderm. 3. Coelom is absent, e.g. Hydra (coelenterates), sponges (Porifera). Triploblastic: 1. Body develops from 3 germ layers- ectoderm,mesoderm and endoderms. 2. Mesogloea is absent and mesoderm is present. 3. Coelom is present, e.g. platy-helminthes, annelids, arthropods, mollusks, echinoderms and choradates.
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