Paramecium bursaria protozoan, micrograph

Paramecium bursaria protozoan, micrograph

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Credit: FRANK FOX/SCIENCE PHOTO LIBRARY

Caption: Paramecium bursaria protozoan. Differential interference contrast (DIC) light micrograph of a paramecium bursaria ciliate protozoan. This protozoan inhabits freshwater, where it feeds mainly on bacteria. It moves by beating its cilia, hair-like extensions that cover its body. The small green bodies inside the protozoan are individual Zoochlorella sp. algae, which have a symbiotic relationship with the protozoan. They photosynthesise inside the Paramecium, providing it with sugars and oxygen, while deriving protection from their host. Magnification: x280 when printed 10 centimetres wide.

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Keywords: 1, alga, algae, algal, animal, animals, aquatic, biological, biology, cilia, ciliate, close-up, detail, dic, differential interference contrast, freshwater, ingested, light micrograph, microbiological, microbiology, nature, no-one, nobody, one, paramecium bursaria, protist, protozoa, protozoan, protozoans, single, structure, structures, wildlife, zoological, zoology

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