Which of the provisions of cellular theory was established by the very first?

A cell is an elementary unit of the living. Since with the help of the first microscope we examined cells – cells, a certain number of them in the body, we realized that organisms consist of these cells.

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.