Zavarzina Theory

Zavarzin's theory

Zavarzin's theory is one of the most famous theories in the field of evolutionary biology. It was developed by Soviet histologist Anatoly Aleksandrovich Zavarzin in the 1930s and was one of the first attempts to explain the evolution of tissues and organs based on their functional role.

According to Zavarzina's theory, the evolution of organs and tissues occurs by changing their functions. Each organ or tissue performs a specific function, which is the basis for its evolution and development. For example, the lungs perform the function of breathing, and the heart performs blood circulation.

Zavarzin believed that the evolution of tissues and organs occurs through gradual changes in their functions and adaptation to new environmental conditions. He also emphasized the importance of interactions between tissues and organs during evolution.

One of the main provisions of Zavarzina's theory is that evolutionary changes occur at the level of cells and tissues, and not organs. This means that organs and tissues can only change after they have gone through the process of evolution at the cellular level.

However, Zavarzin could not explain how cells and tissues evolve and why they change their functions. In addition, his theory did not take into account genetic changes that can occur in cells and tissues.

Despite this, Zavarzin's theory remains important for understanding the evolution of organs and tissues. It continues to be used in modern biology and medicine to explain the process of evolution of organs and tissues and their interaction with each other.



“Zavarzin’s theorem” is an empirical regularity in evolutionary morphology, proposed to describe the deterministic progressive development of an organismic form of organization of matter from one level to another with specific properties. (Alexander Alexandrovich Zavarzin).

However, in his latest work, “The Fourth Law