[Recombination (regroupings), an important mechanism of quantitative changes in live systems]

In natural phenomena a new quality may occur not only in the course of qualitative changes but also by means of different recombinations (regroupings) of the elements that constitute a system, without any change in their number. Different versions of such regroupings are discussed. Recombination (conformation) changes, widely spread in live nature in particular, are of paramount importance, playing a role in the realization of a wide range of adaptation reactions of the body.