Natural communities are developing through the development of a balance between primary production and its consumption. If the energy consumption of organisms is less than primary production, then an accumulation of organic matter occurs in the ecosystem. As a result, the number of species increases or new ones appear that can assimilate these products. If energy costs are more than primary production, then some of the species will die.
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.