Why is natural selection considered the main mechanism of evolution?

Natural selection is the main driver. guiding factor of the evolutionary process. Currently, natural selection is understood as the processes that ensure the survival of the fittest individuals and their offspring. Natural selection always has the character of an adaptive reaction to the conditions of existence.

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.