Ключевые слова: 45 to 49 years, 4549 years, april 2013 release, biologist, biology, biotechnology, brown hair, caucasian ethnicity, closeup, coat, concentration, copy space, disciplines, experiment, eyewear, female, focus concept, front view, glove, goggle, goggles, head and shoulders, lab coat, laboratory, laboratory equipment, life science, life scientist, liquid, looking down, mature adult, mature woman, natural science, numeral, occupation, one person, only female, orthographic symbol, outerwear, petri dish, pipette, plain background, precision, protection, research and development, research facility, rubber glove, safety, sample, sampling, science, science occupation, scientific equipment, scientist, security, studio shot, symbol, thinking, white background, woman, women, working,