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Biology {{#invoke:main|main}} Trichoplax is a small, flattened, animal around {{safesubst:#invoke:convert|convert}} across. Like an Amoeba, it has no regular outline, although the lower surface is somewhat concave, and the upper surface is always flattened. The body consists of an outer layer of simple epithelium enclosing a loose sheet of stellate cells resembling the mesenchyme of some more complex animals. The epithelial cells bear flagella, which the animal uses to help it creep along the seafloor.<ref name=IZ>{{#invoke:citation/CS1|citation |CitationClass=book }}</ref>

The lower surface engulfs small particles of organic detritus, on which the animal feeds. It reproduces asexually, budding off smaller individuals, and the lower surface may also bud off eggs into the mesenchyme.<ref name=IZ/>

Placozoa sections
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