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26.3 MB (26.0 MB compressed)
3586 x 2563 pixels
30.5 x 21.6 cm ⏐ 12.0 x 8.5 in (300dpi)
SINCLAIR STAMMERS / SCIENCE PHOTO LIBRARY SINCLAIR STAMMERS / SCIENCE PHOTO LIBRARY
Spirulina cyanobacteria. Light micrograph of Spirulina platensis cyanobacteria (formally known as blue-green algae) filaments. Each filament is a colony of bacterial cells. Cyanobacteria are photosynthesising bacteria that are found in most habitats where water is present. They are also used as a health food and dietary supplement because of their high protein content. Magnification: x400 when printed at 10 centimetres wide.
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