Científico profesional en gafas protectoras haciendo experimento con reactivos en tubos de ensayo - Foto e imágenes de stock

Smiling chemist in protective eyeglasses holding test tube with reagent in lab

Smiling chemist in white coat holding test tubes with reagents and making experiment

Portrait of serious scientist working with laboratory tube

Professional scientist in protective eyeglasses making experiment with reagents in test tubes

Woman researcher is surrounded by medical vials and flasks, isolated on white background.

Young female scientist looking at chemical sample in test tube with magnifier

Medical research. Delighted nice professional scientist holding a pill and looking at it while conducting medical research

Smiling bearded scientist in protective goggles and gloves holding test tubes with reagents and making experiment

Two adult scientists and little student making experiment in chemical lab

Bearded teacher holding flask while little student looking in microscope

Smiling bearded teacher and serious little student making experiment in lab

Smiling professional scientist in protective glasses making experiment in lab

Smiling teacher and student in lab coats examining green plant with soil in test tube

Side view of teacher and student working together in laboratory

Smiling bearded teacher and serious little student making experiment in lab