Keywords
16 to 17 year olds, 16 to 17 years old, 16-17 years, 40s adult, 45 to 50 year olds, 45 to 50 years old, 45-50 years, academic, adolescent, adults, age 16-17 years, age 45-50 years, educate, educating, education, educational, educator, ethnic, females, forties, fortysomething, gaze, gent, girls, guy, guys, half length, half-length, high school, high school student, highschool student, hispanic ethnicity, hispanics, human, human being, indoors, inside, instruct, instructing, instruction, instructor, late 40s, late forties, latin, latino, learn, learning, looking, looking at camera, males, man, mature, mature man, mature men, men, microscope, microscopy, middle age, middle aged, middle aged man, middle aged men, middle-age, middle-aged, middle-aged man, middle-aged men, pair, people, photography, portrait, posed, school, scientific equipment, secondary school, student, studious, study, studying, teach, teacher, teaching, teen, teenage, teenage girl, teenage girls, teenaged, teenaged girl, teenaged girls, teenager, two, two people, two people only, upper body, young, youth, 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, u18726945