Keywords
18 to 19 years, 20 to 24 years, 50 to 54 years, 50 to 59 years, adolescent, adult, anatomical model, asian, asian ethnicity, biology, campus, caucasian ethnicity, college, educate, educating, education, ethnic, facial expression, female, five people, group, group of people, higher education student, hispanic, hispanic ethnicity, indoors, juvenile, laboratory, latin, latin american, learning, lecturer, man-made model, man-made object, mature adult, mature woman, model, older, only adults, only women, only young adults, only young women, puberty, science, small group of people, smiling, student, studying, teacher, teaching, teenager, university, university student, white, woman, young, young adult, young woman, youngster, youths, 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, is09aj0h1