GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Green alga. Differential interference contrast micrograph of the desmid green alga Netrium digitus . Desmids are a common group of freshwater single-celled algae that have intricate cell walls. Netriums are saccoderm desmids, which have a cell wall made up of one piece. Netriums are highly adapted to acidic water. Magnification: x125 when printed at 10 centimetres wide.
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