Si tratta solo di proporzioni. Cintura di un signore maturo che indossa un camice da laboratorio concentrando la sua attenzione su una pipetta mentre aggiunge un liquido chimico in una provetta . - Foto e immagini stock

Visit our lab. Delighted scientist keeping smile on his face and raising eyebrows while examining blue liquid

Attentive process. Selective focus on a test tube with a blue chemical liquid and a pipette held by a mature lab worker conducting a chemical experiment.

Biological engineering. Serious handsome male biologist standing in the lab and looking at the test tube while conducting a biological experiment

Biological test sample. Selective focus of a test tube being held by a nice smart professional scientist while taking a biological test sample

Professional laboratory. Nice professional bearded scientist wearing labcoat and doing a research while working in the lab

Controlled experiment. Waist up shot of an experienced laboratory worker holding a pipette while adding chemical liquid into a test tube.

Rubber gloves. Positive scientist holding pipette in left hand and dropping reagent into test tube while looking at camera

Chemical lab. Serious intelligent bearded scientist holding a test tube and studying test liquid while doing a chemical research

Pleasant communication. Cute brunette girl keeping smile on her face while listening to her colleague

Funny test. Smiling female keeping medicine dropper in right hand while sitting at the laboratory and her colleague standing behind her

Chemical expertise. Attentive mature scientist wrinkling his forehead while looking at test tube

Light room. Very attentive brunette keeping smile on her face while holding test-glass in left hand and going to checking it up

Future of biology. Serious handsome man writing down his observations while studying human DNA

Close to hand. Delighted scientist opening his mouth and wearing protective glasses while looking at chemical reagent