Caption: Light micrography of the ciliate protozoan Didinium nasutum, having formed a cyst. This ciliate is known to become inanimate and form a cyst when the supply of its Paramecium prey is depleted. This sphere-shaped cyst is approximately 50 microns across. Recorded under Nomarski DIC illumination.

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Keywords: animal-like, animallike, carnivore, cell, cells, cilia, ciliate, cyst, didinium nasutum, freshwater, light, micro, micro-organism, microbiological, microbiology, microorganism, microscope, microscopic, optical, organism, pond, predator, protist, protozoa, single, unicellular

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Didinium nasutum protozoa cyst

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