DR OLIVER SKIBBE / SCIENCE PHOTO LIBRARY DR OLIVER SKIBBE / SCIENCE PHOTO LIBRARY
Surirella diatoms. Light microscopy footage of Surirella diatoms. The siliceous cell walls are 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. These specimens are 60 micrometres long. They are from a freshwater sample from Brno, Czech Republic.
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