MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Actinosphaerium protozoan. Differential interference contrast micrograph of an Actinosphaerium sp. heliozoa protozoan. This single-celled freshwater organism has many pseudopodia radiating outwards from its cell body that are used for capturing prey. A peripheral layer of large vacuoles assist in floatation. Magnification: x100 when printed at 10 centimetres wide.
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