Un duro lavoro. Professionale attraente maschio laboratoriano bulbo in aumento mentre lo guarda e indossa occhiali di sicurezza e maschera - Foto e immagini stock

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

Difficult task. Serious skillful male lab assistant wearing mask while touching microscope and conducting research

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

Close up. scientists are testing a new vaccine. science and health.

Professional biologist. Smart nice handsome man standing near the microscope and looking into it while working as a biologist in the lab

Biological project. Delighted nice smart biologist holding a syringe and putting blue liquid into test tubes while working on a scientific project

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

Modern lab. Smart nice handsome scientist sitting in front of the microscope and looking at the tablet screen while working on his research

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

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