Why did different groups of cells and tissues appear in the process of evolution?

Evolution means that the body becomes better, more resilient, and since nothing ideal exists, the body simply tries to get as close as possible to the ideal.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.