Keywords
20s, 25-30 years, 30s, 40s, 45-50 years, 50-55 years, 50s, adults only, asian ethnicity, assistant, biology, black hair, chemist, color image, document, electronic microscope, expertise, explaining, female, file, five objects, front view, glasses, head and shoulders, healthcare and medicine, hi-tech, hi-technology, horizontal, indoors, japanese ethnicity, lab coat, laboratory, laboratory equipment, looking, male, man, mature adult, mature men, monitor, pc, pen, photography, professor, research, scientist, sheet, side view, small group of objects, small group of people, talking, teaching, technology, two people, waist up, woman, writing, young adult, young women, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u18804637