Ключевые слова: adult, adults only, analyzing, biochemistry, biology, biotechnology, chemical, chemistry, closeup, color image, concentration, copy space, development, dna, doctor, equipment, examining, expertise, females, healthcare and medicine, horizontal, hospital, human body part, human hand, innovation, laboratory, liquid, medical research, medical test, medicine, microbiology, microscope, occupation, one person, part of, people, pipette, protective glove, research, science, scientific experiment, scientist, stem topic, technician, technology, test tube, working, young adult,