DR OLIVER SKIBBE / SCIENCE PHOTO LIBRARY DR OLIVER SKIBBE / SCIENCE PHOTO LIBRARY
Surirella diatom. Light microscopy footage of a Surirella diatom. This diatom is seen in profile (girdle view). Its siliceous cell wall is divided into two halves, one of which fits within the edges of the other like a box with a lid. Diatoms are single-celled algae that form an important part of the plankton at the base of the marine and freshwater food chains. This specimen is 120 micrometres long. It is from a freshwater sample from Brno, Czech Republic.
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