MICHAEL ABBEY / SCIENCE PHOTO LIBRARY MICHAEL ABBEY / SCIENCE PHOTO LIBRARY
Light micrograph of Paramecium sp., a type of ciliate protozoa. The micrograph shows the dark- stained cell nuclei at the centre of each organism. Surrounding each organism is a fringe of cilia, the beating of which aids in locomotion. Magnification: x100 at 35mm size.
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