Keywords
60-65 years, adult, analyzing, bottle, chemical, colour, day, discovery, experiment, glass, grey hair, head, head and shoulders, headshot, healthcare and medicine, holding, indoors, innovation, knowledge, laboratory, man, occupation, one person only, photography, research, rubber gloves, science, scientist, senior adult, senior man, shelf, shoulders, specimen, spectacles, technology, test, white coat, whites, working, 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, u19035557