Scientifique aux cheveux gris assis et regardant la caméra pendant que la femme travaille au laboratoire - Photo & image de stock

Professional chemists in white coats working with microscopes in laboratory and looking at camera

Scientist using microscope while colleague holding reagent in tube in lab

Scientist in white coat and protective gloves looking at camera with colleague near by

Close-up portrait of bearded senior scientist working with microscope and looking at camera

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

Pensive laboratory technicians in lab coats looking at camera at laboratory

Smiling bearded teacher looking at little student working with microscope in lab

Bearded teacher holding flask while little student looking in microscope

Bearded chemist in goggles with reagents in tubes and tablet in laboratory

Concentrated bearded chemist in goggles with reagents in tubes in laboratory

Adorable little girl in goggles with reagents in tubes in laboratory

Adorable little girl with flasks in laboratory, two scientists behind

Attractive blonde scientist working with microscope in laboratory, looking at camera

Smiling bearded teacher and serious little student making experiment in lab

Concentrated bearded scientist working with microscope in laboratory