Keywords
16-17 years, biology, classroom, contented, cross section, day, discovery, education, girl, half-length, high school student, indoors, knowledge, learning, looking at camera, model, multi-racial, scale, science, science class, scientific model, smiling, standing, teaching aid, teenage, teenage boy, teenage girl, teenager, two people with others, whites, 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, u21319136