FRANK FOX / SCIENCE PHOTO LIBRARY FRANK FOX / SCIENCE PHOTO LIBRARY
Euastrum desmid. Differential interference contrast (DIC) light micrograph of a Euastrum crassum desmid green alga. Desmids are a common group of freshwater single-celled algae that have intricate cell walls. Magnification: x570 when printed at 10 centimetres wide.
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