Usmíval se vousatý učitel při pohledu na malý student pracovat s mikroskopem v laboratoři - Stock fotografie a obrázky

Biological research. Positive smart male biologist holding a microscope and taking a test tube while conducting a biological research

Smiling bearded teacher and serious little student making experiment in lab

Happy scientists in white coats working with microscope in laboratory

Concentrated bearded scientist working with microscope in laboratory

In the scientific lab. Selective focus of scientist hand taking out of the test tube for the research

Biological research. Cheerful smart male scientist looking at the test tubes and smiling while working in the bio lab

Successful experiment. Cheerful positive smart scientist looking into the microscope and smiling while being happy with his research results

More samples. Merry gay male laboratorian grinning while getting vial and putting on safety glasses

Team of mature scientists working together in lab and looking at each other

Professional scientist in protective eyeglasses making experiment with reagents in test tubes

Smiling chemist in protective eyeglasses holding test tube with reagent in lab

Concentrated senior scientists in uniform looking at flask while his colleague working with microscope on foreground in lab

Caucasian smiling chemist in white coat working with microscope and reagents while in chemical lab

Professional chemists in white coats working with microscopes in laboratory and looking at camera

Caucasian scientist working with microscope while her colleague looking at flask behind in chemical laboratory

Side view of scientists in white coats working with microscopes in chemical lab