Ключевые слова: adult, analysis, analyzing, biology, biotechnology, caucasian, chemical, chemist, chemistry, doctor, eppendorf, equipment, experiment, flask, health, lab, laboratory, looking, male, man, medical, medicine, microscope, modern, occupation, people, person, petri dish, pipette, profession, professional, rack, research, researcher, science, scientific, scientist, study, technician, technology, test, tube, using, worker, working,