Why the biological cycle of substances is the main condition for the existence of ecosystems

In biocenoses, all populations of species are connected by a complex food network. Energy enters the organisms of animals from plants, which draw reserves from inanimate nature. As a result, any biocenosis represents a certain unity of the network with its biotope.

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.