http://en.wikipedia.org/wiki/Protist
The group of protists is now considered to mean diverse phyla that are not closely related through evolution and have different life cycles, trophic levels, modes of locomotion and cellular structures.Besides their relatively simple levels of organization, the protists do not have much in common.They are unicellular, or they are multicellular without specialized tissues, and this simple cellular organization distinguishes the protists from other eukaryotes, such as fungi, animals and plants.
The group of protists is now considered to mean diverse phyla that are not closely related through evolution and have different life cycles, trophic levels, modes of locomotion and cellular structures.Besides their relatively simple levels of organization, the protists do not have much in common.They are unicellular, or they are multicellular without specialized tissues, and this simple cellular organization distinguishes the protists from other eukaryotes, such as fungi, animals and plants.
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