Nauczyciel i uczeń w płaszcze laboratorium badanie zielone rośliny z gleby w probówce - Zdjęcie stockowe & obraz

Smiling bearded teacher and serious little student making experiment in lab

Biological project. Delighted nice smart biologist holding a syringe and putting blue liquid into test tubes while working on a scientific project

Biological research. Positive smart male biologist holding a microscope and taking a test tube while conducting a biological research

Little student with eyeglasses looking at teacher working with microscope in lab

Biological research. Positive smart male biologist holding a microscope and taking a test tube while conducting a biological research

Scientist working in lab. Doctors making medical research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, science, experiments and healthcare concept. Day light and

Smiling bearded teacher looking at little student working with microscope in lab

Smiling bearded teacher looking at little student working with microscope in lab

Team of mature scientists working together in lab and looking at each other

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

Caucasian scientist working with microscope while her colleague looking at flask behind in chemical laboratory

Concentrated caucasian scientists in uniform working with microscope and flasks in chemical laboratory

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

Portrait of focused scientist using microscope while working with reagents in lab

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

Professional chemists in white coats working with microscopes in laboratory and looking at camera