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25.5 MB (25.0 MB compressed)
2432 x 3661 pixels
20.6 x 31.0 cm ⏐ 8.1 x 12.2 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: x1150 when printed at 10 centimetres tall.
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