leväyhteisö
Leväyhteisö, also known as a lichen, is a composite organism formed by the symbiotic association of a fungus and an alga or cyanobacterium. This unique relationship is characterized by the fungus providing structural support and protection, while the alga or cyanobacterium performs photosynthesis, producing food through sunlight. The fungus absorbs water and nutrients from the environment, which it then shares with the alga or cyanobacterium. This mutualistic relationship allows lichens to thrive in a variety of environments, including extreme conditions where other organisms cannot survive.
Lichens are found worldwide and play a significant role in various ecosystems. They are often the first