In the XX century. The experimental method has become leading in biology. This was made possible thanks to the appearance of new devices for biological research (electron microscope, tomograph, etc.) and the use of methods of physics and chemistry in biology. Currently, various types of microscopy are widely used in a biological experiment, including electron microscopy using ultra-thin sections, biochemical methods, various methods of culturing and intravital observation of cell cultures, tissues and organs, the method of labeled atoms, X-ray diffraction analysis, ultracentrifugation, chromatography, etc. It is no accident in the second half of the 20th century. in biology a whole direction has developed – the creation of the latest devices and the development of research methods.
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.