Where are lichens found? How are lichens arranged? How do they eat?

In a dark spruce forest, dry pine forests, in the tundra.

Lichens are organisms whose body is formed as a result of the symbiosis of a fungus and algae. The body of a lichen is called a thallus (thallus). The photosynthetic component of a lichen (alga or cyanobacterium) is called a phycobiont (gr. Phycos — algae), and the fungal component — a mycobiont (gr. Mycos — fungus). Among phycobionts, green algae and cyanobacteria are most often found. In total, about 100 species of phycobionts are part of lichens. This means that one species of phycobiont can have several fungal components. There are about 13,500 lichen species in the modern flora.

There are suckers on the mushroom filaments that penetrate into the algae cell. Thus, the mycelium receives the organic substances it needs for nutrition from the cells of green algae. In turn, the filaments of the lichen fungus absorb water and minerals dissolved in it from the environment, which enter the cells of the algae.