12 Main Features of Phylum Placozoa | Metazoans
The following points highlight the twelve main features of Phylum Placozoa. 1. Phylum Placozoa are minute, shapeless, multicellular mobile flattend animals. 2. 2-3 mm in diameter. 3. Body of Phylum Placozoa is composed of two outer layers with monociliated epithelial cells. 4. Epithelial cells lack a basal lamina. 5. An inner layer containing loose contractile columnar cells with a single [...]