Currently, several forms of natural selection are distinguished, the main of which are stabilizing, moving and disruptive.
||In what conditions does it
||constantly changing conditions
||the formation of new species
||loss of limbs in a snake
||relatively stable conditions
||preservation of the genotype of the species
||coelacanth, oposum, ginkgo
In both cases, we have genetic diversity. But in the first case, this leads to the emergence of new species, and in the second they are eliminated.
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.