Keywords
asian ethnicity, beaker, close up, close-up, color, color image, colour, concentrating, concentration, curiosity, curious, examining, example, expertise, face, far eastern, front view, head, head & shoulders, head and shoulders, head on, head-on, hold, holding, human face, indoors, inside, intelligence, interest, knowledge, lab, laboratory, learning, liquid, male, man, mature, mature adult, middle age, middle aged, occupation, one, one person, only men, people, person, photography, pondering, sample, science, scientist, serious, single object, solemn, study, studying, technician, technology, tetra images, thinking, toiling, vertical, view, viewing, wet, 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, u10708879