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Diatom. Coloured scanning electron micrograph (SEM) of a diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, (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.
May 12th, 2013
Viewed 106 Times - Last Visitor from Kiev, 13 - Ukraine on 09/29/2014 at 6:40 AM
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