The term "protist" covers a wide range of microscopic organisms formerly clumped into "Kingdom Protista." New discoveries based on genetic analysis show that the various lines of protistan life go so far back in time that they may easily represent different kingdoms of life. These findings demonstrate the dynamic nature of evolutionary knowledge and how it relates to biological classification. Along the way, by means of stunning live photography, students are introduced to some of the most fascinating organisms found in nature - the amoebas, flagellates, algae; and those most elegant cells, the ciliated protists.

Includes 9 narrated modules plus additional observations.

45 minutes. ©2003. High school-college.