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Numerous short extensions of the plasma membrane used for locomotion.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref>
Numerous short extensions of the plasma membrane used for locomotion and other purposes.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref>
Most ''mucous membranes,'' such as those in the nose, are covered with cilia to create a constant flow of mucus.
Cilia cover the "foot" of a snail and are used to move the snail slowly along. Cilia are used for the slow locomotion of flatworms such as [[planaria]].
Within [[bivalves]], cilia create a constant flow of water over various filtering and sorting surfaces and move and separate food particles from the water.
Cilia cover protozoans such as the [[paramecium]]. Paramecia give the impression of moving quickly when viewed under a microscope, but in actuality they move, literally, at a snail's pace. The microscope, of course, magnifies their motion as well as their size.
==References==
==References==
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