Химическая лаборатория. Серьезный умный бородатый ученый держит пробирку и изучает жидкость во время химических исследований - Стоковое фото и изображение

Biological engineering. Serious handsome male biologist standing in the lab and looking at the test tube while conducting a biological experiment

Attentive process. Selective focus on a test tube with a blue chemical liquid and a pipette held by a mature lab worker conducting a chemical experiment.

Visit our lab. Delighted scientist keeping smile on his face and raising eyebrows while examining blue liquid

Experienced biologist. Serious pleasant handsome man holding a microscope and looking at you while working in the biological lab

It is all about proportions. Waist up shot of a mature gentleman wearing a lab coat concentrating his attention on a pipette while adding a chemical liquid into a test tube.

Professional laboratory. Nice professional bearded scientist wearing labcoat and doing a research while working in the lab

Professional research. Selective focus of laboratory equipment being used for doing a professional research

Chemical experiment. Smart nice experienced chemist holding a test tube and looking at it while working in the lab

Developing new material. Scientist working out the formula of new material

Experienced professor. Serious grey-haired man wearing lab coat while testing equipment

My research. Professional scientist standing in a lab and holding a test tube

Attending doctor. Short-haired scientist wearing special protective uniform in laboratory during dangerous experiment

Thoughtful researcher. Attentive bearded scientist wrinkling his forehead while looking at pink liquid

Exploring it attentively. Contented scientist carrying tubes with muddy liquids in both hands and examining it

Genius chemist. Serious smart man writing a chemical formula while standing in front of the whiteboard