Επαγγελματίας βιολόγος. Επιλεκτική εστίαση ενός αρσενικού χεριού στο γάντι μιας χρήσης ενώ παίρνετε ένα δοκιμαστικό σωλήνα - Φωτογραφίες & Εικόνες Αρχείου

Laboratory research. Selective focus of a male hand taking a test tube with test samples while conducting a research

Chemical experiment. Professional medical worker sitting at his workplace while examining reagent

Vials with liquids. Selective focus of transparent glass vials where liquids poured which staying in stand

Difficult task. Serious skillful male lab assistant wearing mask while touching microscope and conducting research

Background image is a group of scientists studying the liquid in the glass tube. the concept of the research

Tough work. Ambitious focused male laboratorian looking in microscope while posing in profile and dressing in lab coat

Hard work. Professional appealing male laboratorian rising bulb while looking at it and wearing safety glasses and mask

My research. Serious brunette male lab assistant posing in profile while looking in microscope and studying sample

Responsible work. Selective focus of vials standing in stand while man using microscope and wearing gloves on the background

Scientific challenge. Pleasant handsome male laboratorian dressing in safety glasses while elevating vial and gazing at it

Working reagents. Selective focus of glass transparent vials putting in stand while it resting on surface

Chemical studies. Test tubes with chemical reagents standing on the shelf while being used for scientific analysis