At present, three directions in biology can be conditionally distinguished. First, this is classical biology. It is represented by natural scientists studying the diversity of wildlife. They objectively observe and analyze everything that happens in living nature, study living organisms and classify them. The second direction is evolutionary biology. In the XIX century. Charles Darwin, the author of the theory of natural selection, began as an ordinary naturalist: he collected, observed, described, traveled, revealing the secrets of wildlife. However, the main result of his work, which made him a famous scientist, was a theory explaining organic diversity. The third area is physical and chemical biology, which studies the structure of living objects using modern physical and chemical methods. This is a rapidly developing field of biology, important both theoretically and in practical terms. It is safe to say that new discoveries await us in physico-chemical biology, which will solve many of the problems facing humanity.
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.