![](http://www.alamy.com/thumbs/6/A95F6D97-B235-437A-BABF-FEE12DA0F782/2BC805N.jpg)
Screw algae Spyrogyra under the microscope
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Photo credit: © Norbert Dr. Lange / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: algae, biology, enlargement, float, floating, fresh, freshwater, green, macro, magnification, microorganisms, microscopy, organisms, plankton, plants, screw, spyrogyra, swimming, water