Keywords
20-24 years, 20s, asian ethnicity, biology, caucasian appearance, demonstration, education, five people, human biology, human body part, indian ethnicity, interior, laboratory, learning, lesson, mid adult, mid adult men, mixed race person, multiracial group, pupil, scientific education, skeleton, student, study, teacher, teenage boys, teenage girls, teenager, top section, 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, u16826298