Name the structural and nutritional features of lichens and indicate their role in nature.

1) lichens are complex (symbiotic) organisms consisting of a fungus and cyanobacteria or algae; 2) the hyphae of the fungus provide the body with mineral salts and water, and algae and cyanobacteria synthesize organic substances in the light; 3) the role of lichens in nature: participation in soil formation, pioneers of the settlement of unfavorable habitats, a link in the ecosystem nutrition chain.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.