Usmívající se vousatý učitel a vážné malý studentské tvorby experiment v laboratoři - Stock fotografie a obrázky

Smiling bearded teacher and serious little student making experiment in lab

Smiling bearded teacher and little student working with microscope and test tube in lab

Young scientists working in laboratory. Chemical analysis

Side view of smiling scientists working in laboratory with microscope and taking notes

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

Selective focus of scientist in white coat and eyeglasses at workplace with microscope in laboratory

Successful project. Cheerful positive nice biologists standing together in the lab and smiling while being happy about their successful project

Closeup.smiling team of biologists in the lab .the background image

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 caucasian scientists in uniform working with microscope and flasks in chemical laboratory

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

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

Attractive middle aged scientist working with microscope in chemical lab

Smiling chemist in white coat holding test tubes with reagents and making experiment

Two happy scientists in white coats working together with microscope in chemical laboratory

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