Tetrahymenina
Tetrahymenina (class Ciliatea, order Hymenostomatida) A suborder of ciliate protozoa in which the cilia in the oral region are inconspicuous. There are three families, and many genera, found in freshwater habitats. Some are parasitic. Tetrahymena species are widely used in laboratory studies of protozoa.
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Wrens and humans
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Wrens are about 60 species of small, restless perching birds in the family Troglodytidae. Species o…
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Tetrahymenina