Taxon Description (Wikipedia)
Trichoplax adhaerens is the only extant representative of phylum Placozoa, which is a basal group of multicellular animals (metazoa).
Trichoplax are very flat creatures around a millimeter in thickness, lacking any organs or internal structures. They have three cellular layers: the top epitheloid layer is made of ciliated "cover cells" flattened toward the outside of the organism, and the bottom layer is made up of cylinder cells which possess cilia used in locomotion and gland cells which lack cilia. Between these layers is the fiber syncytium, a liquid-filled cavity strutted open by star-like fibers.
Trichoplax feed by absorbing food particles– microbes– their underside. They generally reproduce asexually, by dividing or budding, but can also reproduce...
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