50.3 MB (50.0 MB compressed)
4500 x 3908 pixels
38.1 x 33.0 cm ⏐ 15.0 x 13.0 in (300dpi)
PHILIPPE CRASSOUS / SCIENCE PHOTO LIBRARY PHILIPPE CRASSOUS / SCIENCE PHOTO LIBRARY
Diploneis diatom, coloured scanning electron micrograph (SEM). Diatoms are single-celled photosynthetic algae, of which there are about 100,000 species. They have mineralised cell walls (frustules) that contain silica and provide protection and support. The diatoms form an important part of the plankton at the base of the marine and freshwater food chains. Magnification: x3650 when printed at 10 centimetres across.
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