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