A population is considered a unit of evolution. Justify this statement.

In a population: 1) mutations accumulate, leading to a change in the gene pool; 2) individuals migrate and exchange genes; 3) there is a struggle for existence and natural selection.

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.