Keywords
18-19 years, 20's, 20-24 years, 20-25, 20-30, 20s, 25-30, 3, 40's, 40-45, 40-50, 40s, 45-50, 50-54 years, 50-55, 50-60, 55-60, adult, analysis, asian, asian ethnicity, biology, caucasian, chemical, class, classmate, classroom, college, color, color image, colour, concentrating, concentration, confidence, confident, cooperation, copy space, counseling, curiosity, curious, demonstrating, demonstration, displaying, educating, education, educator, elevated view, examining, exhibiting, experiment, experimentation, experimenting, far eastern, fellow, female, fifties, fifty, flask, forties, forty, gal, gentleman, glove, guidance, guy, high angle, high angle view, hispanic, holding, human, human being, indoor, indoors, information, inside, instructing, instruction, instructor, intelligence, interest, knowledge, lab, laboratory, lady, latin, latin american, latin american and hispanic ethnicity, latina, learning, looking down, male, man, mature adult, mature women, microbiology, mid life, middle age, middle aged, middle-age, middle-aged, multi-ethnic group, multicultural, multiculturalism, negative space, observation, oriental, people, person, petri dish, photography, professor, pupil, r&d, research, research & development, research and development, researching, rubber glove, rubber-glove, school, schoolmate, schoolroom, science, scrutinizing, seated, serious, seriousness, showing, sitting, smearing, smudging, solemn, somber, student, studying, teacher, teaching, team, teamwork, test tube, three, three people, training, tuition, tutor, tutoring, twenties, twenty, university, vertical, vigilance, waist up, waist-up, watching, western european, white space, wisdom, woman, women, young adult, young men, young women, 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, blm016472