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Man bearded teacher work with microscope and test tubes in biology classroom. Explaining biology to children. Biology plays role in understanding of complex forms of life. School teacher of biology
Keywords:
men
education
teaching
studying
adult
laboratory
working
childhood
child
indoors
teacher
blackboard
desk
intelligence
development
science
chemical
student
classroom
research
schoolboy
beard
scientist
schoolgirl
chemistry
learning
girls
boys
teaching chemistry to students
biology teacher
teacher of biology
interesting microscope
play complex
teacher work desk
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