Ключевые слова: adult, background, biology, biomedical, biotechnology, blue, chemical, chemist, chemistry, clinic, closeup, development, dna, face, glasses, green, healthcare, industry, lab, labcoat, laboratory, liquid, mask, medical, medicine, people, plant, profession, professional, research, researcher, science, scientific, scientist, solution, student, study, technician, test, testtube, tube, uniform, white, work, worker, working, yellow, young,