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Macintosh Picture Format  |  1996-09-10  |  174.7 KB  |  640x310  |  8-bit (221 colors)
   ocr: Protozoa kingdom called "protists or "protoctists. Despite the fact that they consist of only one cell, protozoa are varied in form and physiology, and carry out the metabolic functions of higher animals, such as digestion, respiration, and coordinated movement. Protists are found in almost every natural body of water, as well as on ori in most animals as symbionts or parasites. The complexity of these organisms is made visible to the naked eye in Mueller's models. Shown here is a cutaway view of 35