Dinoflagellate, SEM

Dinoflagellate, SEM

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Dinoflagellate. Coloured scanning electron micrograph (SEM) of the slow- moving dinoflagellate, Ceratium pulchellum. Its concave 'body' has 'arms', which help with flotation, and their length and shape are specific to different subspecies. Dinoflagellates are unicellular protozoans. About 90% are found in marine environments as plankton. They are characterised by the presence of two flagella (not visible). One flagellum beats back and forth, while the other is flat and ribbon- like, and works as a rudder to steer and rotate the organism.

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Keywords: ceratium pulchellum, coloured, dinoflagellate, false-colour, false-coloured, flagellate, fossilology, invertebrate, invertebrates, marine, microbiological, microbiology, micropalaeontology, one, protozoan, scanning electron micrograph, scanning electron microscope, sem, single

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