DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY
Algal colony, light micrograph. Colony of the green freshwater alga Coleochaete sentata. The whole plant is a disc composed of filaments packed close together, branching out from the centre. Each filament consists of algae cells. At upper right is a daughter colony, produced by asexual reproduction, budding off the main plant. Magnification: x45 when printed at 10 centimetres across.
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