Lichen
Lichen
Canada's Aquatic Environment
University of Guelph
Lichens have traditionally been referred to as a prime example of a symbiotic relationship. Each lichen consists of an intimate association between a fungus and an algae. The algae within the fungus photosynthesizes, providing food for both organisms. The fungus protects the alga from harmful light intensities, produces a substance that accelerates photosynthesis in the algae, and absorbs and retains water and minerals for both organisms.
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