Insegnanti sorridenti e studenti seri che guardano la pianta verde in laboratorio - Foto e immagini stock

Smiling teachers and serious little student looking at green plant in laboratory

Smiling teachers with green plant in soil looking at little student in laboratory

Smiling boy in white coat holding jar with powder near girl with test tubes on blurred foreground

Science research, work and people concept - international female scientists with folder working in laboratory

Science research, work and people concept - international female scientists with tablet pc computer working in laboratory

Student and teacher on biology training course

Two scientists are conducting tests in the laboratory.photo with copy space

Beautiful woman face near doctor with syringe.

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

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

Happy chemists in white uniform working with microscope and looking at each other in laboratory

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

Laboratory technicians in lab coats talking with digital tablet and flask at laboratory

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

Thoughtful caucasian chemists in uniform working with microscope in chemical laboratory