MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Desmids and cyanobacteria. Polarised light micrograph of Netrium sp. (oval) and Closterium sp. (long) desmids with cyanobacteria (thread-like). Desmids are a common group of freshwater single-celled algae that have intricate cell walls. Cyanobacteria are bacteria that obtain their energy through photosynthesis. Magnification: x100 when printed 10 centimetres wide.
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