One of the three domains of life (the others being BACTERIA and ARCHAEA), also called Eukarya. These are organisms whose cells are enclosed in membranes and possess a nucleus. They comprise almost all multicellular and many unicellular organisms, and are traditionally divided into groups (sometimes called kingdoms) including ANIMALS; PLANTS; FUNGI; and various algae and other taxa that were previously part of the old kingdom Protista.
    

concept

A single enteropathogenic E. coli in the intestine

Actinosphaerium is a single celled organism found in pond water. It is a protist that uses its long axopodia to capture prey. Actinosphaeria are also known as sun animalcules and are approximately 0.2 - 1.0mm wide.

Protista

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Catalogue

SEM of Giardia

Arkhiv Russkogo protistologicheskogo obshchestva = Archives de la Société russe de protistologie.

Anaerobe

A single enteropathogenic E. coli in the intestine

Vaginicola