![A lichen is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi[1] in a symbiotic relationship.](https://image.shutterstock.com/image-photo/lichen-composite-organism-that-arises-450w-1139609051.jpg)
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Free symbiotic Stock Photos
Search Results: 5 Free Images - Textures, Photos & Illustrations. No Attribution Needed.