MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Euglena protozoa. Brightfield illuminated light micrograph of a group of Euglena sp. flagellate protozoa. Euglena are freshwater unicellular (single-celled) organisms that obtain energy either from sunlight by photosynthesis, or by absorbing chemicals from their surroundings. Magnification: x100 when printed 10 centimetres wide.
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