Uneasy work. Professional skillful male lab assistant using reagent while performing experiment and touching microscope - Stock Photo & Image

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

Scientific challenge. Pleasant handsome male laboratorian dressing in safety glasses while elevating vial and gazing at it

Close up.male scientist uses a microscope in the laboratory .science and health

Test tubes near microscope and blurred scientist in laboratory

Chemical lab. Selective focus if test tubes standing on the table with a handsome professional chemist working in the background

Professional chemist. Smart nice male researcher wearing a mask and protective glasses while conducting chemical experiment in the lab

Medical lab. Serious intelligent female biologist sitting at the table and looking into the microscope while working in the medical lab

Scientific project. Serious intelligent hard work holding a test tube and looking into the microscope while working on his project

Laboratory samples. Selective focus of test tubes with blue reagents being used for scientific research in the medical lab

Medical lab. Smart intelligent nice woman holding a test tube and looking at it while working in the lab