Liquens Royalty-Free Stock Photo

Lichens are organisms formed by interspecific association between algae and fungi. It is a harmonic relationship between different species: photobiont algae and mycobiont fungi.This ecological relationship is called obligate mutualism or symbiosis. It is so important to lichens that their survival depends on it. Thus, it is beneficial to its members.Algae are responsible for carrying out photosynthesis. From there, it supplies organic substances to the fungi. In turn, the fungi maintain moisture and thus protect the algae by preventing them from drying out. This is how lichens manage to live.