HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY
Lichen symbiosis. Light micrograph of unicellular algae (Chlorella, green) and mycelial filaments of the fungus associated with it, forming a lichen. This is an example of symbiosis. Magnification: x280 when printed at 10 centimetres high.
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