In the six kingdom classification, the Protista Kingdom contains all single celled organisms which are eukaryotic, meaning which have a nucleus. They are called protists.

Originally released by Benchmark Media, 2006. Streaming video file encoded with permission for digital streaming by Infobase on April 30, 2015.

The Protista Kingdom (1:53); --The Amoeba (3:53); -- The Paramecium (6:32);.