50.2 MB (50.0 MB compressed)
3811 x 4607 pixels
32.3 x 39.1 cm ⏐ 12.7 x 15.4 in (300dpi)
STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Vorticella protozoan. Coloured scanning electron micrograph (SEM) of a Vorticella sp. ciliate protozoan. This single-celled organism consists of a bell-shaped head, and a stalk that is anchored to the substrate. The stalk contains a contractile fibril called a myoneme. When stimulated this shortens, causing the stalk to coil like a spring (seen here). Magnification: x1300 when printed at 10 centimetres wide.
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