Primer plano de un científico sonriente escribe una fórmula en la pizarra en el laboratorio . - Foto e imagen de stock

Close up of a smiling scientist writes a formula on the blackboard in the lab.

Closeup of a serious scientist working with formulas in the laboratory.

Close up of a smiling scientist writes a formula on the blackboard in the lab.

Closeup of a serious scientist working with formulas in the laboratory.

Close up of a smiling scientist writes a formula on the blackboard in the lab.

Close up of a smiling scientist writes a formula on the blackboard in the lab.

Closeup of a serious scientist working with formulas in the laboratory.

Close up of a Man scientist working with formulas in the laboratory.

Young scientist making notes on the glass Board at the time of the experiment.photo with copy space

Two chemist scientists in the workplace in the laboratory.photo with copy space

Closeup. chemist holding a beaker with a solution .photo with copy space

Successful scientist checking the results of the examination.photo with copy space

Closeup.a scientist doing experiments in the laboratory.photo with copy space

Smiling woman scientist looking at the tube with the results of the analysis.photo with copy space

Closeup. chemist holding a beaker with a solution .photo with copy space

Young scientist looking at a test tube with test results. concept of health protection.