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Wikipedia definition
1. ParameciumParamecium is a genus of unicellular ciliate protozoa, commonly studied as a representative of the ciliate group. The shape mostly resembles a shoe's sole. The cell ranges from about 50 to 350 µm in length and is covered with simple cilia, allowing the cell to move at speeds of approximately 12 body lengths per second. There is a deep oral groove containing inconspicuous tongue-like compound oral cilia (as found in other peniculids) used to draw food inside.
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