Name the most essential properties that characterize the biocenosis as a system.

• Natural, historically formed system;
• A system capable of self-regulation and maintaining its composition at a certain constant level;
• The cycle of substances is characteristic;
• An open system for the input and output of energy, the main source of which is the Sun.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.