What is the essence of the cycle of substances in an ecosystem?

Energy cannot be transferred in a closed circle, it is spent, turning into the energy of chemical bonds and heat. Substance can be transmitted in closed cycles, repeatedly circulating between living organisms and the environment.



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.