Entuzjastycznie naukowiec. Szczęśliwy pozytywny człowiek zadowolony noszenie okularów ochronnych i uśmiechając się podczas pracy z odczynniki chemiczne - Zdjęcie stockowe & obraz

Chemical project. Nice positive smart chemists standing together and smiling while working on a chemical project

Successful scientist checking the results of the examination.photo with copy space

Chemical reagent. Selective focus of test tube with blue liquid being in hands positive smart male scientist

Successful experiment. Nice positive happy scientist looking at the test tubes and smiling while conducting a successful experiment

Closeup.successful scientist on a light background.photo with copy space

Safety glasses. Happy positive bearded scientist standing in the lab and wearing protective equipment while working there

In the lab. Joyful positive nice boy looking into the microscope and smiling while being curious about science

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

No more need. Merry gay male laboratorian wearing safety glasses while smiling and looking at bulb

Successful experiment. Selective focus of male hand carried vial filled with liquid and man putting on safety glasses and grinning

Hard work. Professional appealing male laboratorian rising bulb while looking at it and wearing safety glasses and mask

Uneasy work. Professional skillful male lab assistant using reagent while performing experiment and touching microscope

Tough work. Ambitious focused male laboratorian looking in microscope while posing in profile and dressing in lab coat

Total concentration. Brunette professional male laboratorian working with pipette for dropping liquid in vials while they placing in stand