Retrato de científico sonriente con las manos en la mesa mirando a la cámara en el laboratorio - Foto e imagen de stock

Portrait of smiling scientist holding bottles with reagents in hands in laboratory

Portrait of tired senior scientist sitting at workplace and looking at camera

Grey haired scientist sitting and looking at camera while woman working at laboratory

Happy senior bearded scientist in white coat holding tube with reagent in chemical laboratory

Scientist using microscope while colleague holding reagent in tube in lab

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

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

Concentrated bearded chemist in goggles with reagents in tubes in laboratory

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

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

Scientist looking at camera and holding tubes with reagents at laboratory

Concentrated bearded scientist working with microscope in laboratory

Bearded scientist working with microscope and looking at camera in laboratory