Under the influence of evolutionary factors – a mutational process, isolation, natural selection, etc. – an elementary evolutionary phenomenon constantly occurs in a population – a change in the population’s gene pool. Useful mutations are preserved by natural selection, harmful mutations accumulate in the population in a latent form, creating a reserve of variability. After several generations, isolated populations living in different conditions will differ in a number of ways. Isolation is also an elementary evolutionary factor, acting at the microevolutionary level, and leads to speciation. Also, gene drift can result in a new species. As a result of all these factors, a new species may appear or the original species may better adapt to environmental conditions.
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.