Keywords
60-64 years, above 30, accuracy, biologist, biology, black background, bottle, care, caucasian appearance, chemical, chemist, chemistry, close-up, color, concentration, dark, discovery, education, expertise, front view, german text, holding, lab coat, laboratory, laboratory equipment, liquid, low angle view, occupation, one person, part of, photography, pouring, red, research, science, scientific experiment, scientist, selective focus, senior men, series, studio shot, test tube, vertical, waist up, 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, 943006