20s
70s
academic
assignment
biochemist
biochemistry
biology
biotechnology
campus
caucasian
cheerful
chemist
chemistry
classmates
college
college student
education
elderly
equipment
female
happy
healthcare and medicine
higher education
indoors
knowledge
lab
lab coat
laboratory
male
man
medical
medical research
medicine
microscope
mixedrace
portrait
school
science
scientific experiment
scientist
senior
sitting
smiling
student
team
technology
together
university
university student
woman
young adult