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Vorticella Ciliates

Vorticellas may utilize their cilia to sweep prey into their mouth-like openings. They eat bacteria and other small protozoans, the movement of their cilia creating a water current similar to a vortex, an action that is the basis of their moniker. After food has entered the buccal cavity, the protozoan retracts its contractile stalk and the food is "swallowed."

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