Keywords
70-75 years, above 30, adult, alone, bald, baldness, beaker, beakers, blur, blurred, caucasian appearance, chemical, chemicals, chemistry, close up, close ups, close-up, close-ups, closeup, closeups, cut out, cut-out, differential focus, discovery, experienced, experiment, experiments, exploration, hand, hands, hold, holding, indoors, intelligence, intelligent, knowing, knowledgeable, lab, lab coat, lab coats, lab equipment, laboratories, laboratory, laboratory coat, laboratory coats, laboratory equipment, labs, liquid, male, males, mature men, men, model release, model release yes, model released, no background, no backgrounds, one, one only, one person, people, person, research, researcher, researchers, science, science experiment, science experiments, science lab, science labs, sciences, scientific, scientific equipment, scientist, scientists, selective focus, senior, senior adult, senior men, smart, test equipment, test tube, test tubes, testing equipment, vertical, white background, white backgrounds, 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, b03309