Cientista barbudo sorridente segurando frasco com reagente e olhando para colega usando computador desktop - Banco de fotos e imagens

Close up. doctor in a protective mask standing in the laboratory. photo with a copy-space.

Three medical workers in lab coats and sterile masks discussing work in laboratory

Portrait of executive male dentist holding x-ray and discussing with beautiful female assistant.

Beautiful woman face near doctor with syringe

Orange filter. Attentive male person having mask on face and wrinkling forehead while treating his patient

Scientists at chemical laboratory during work

Colleagues in lab coats using digital tablet during work at laboratory

Concentrated attractive blonde scientist working with microscope in laboratory

Teacher and student in white coats making experiment in laboratory

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

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

Teachers and little student in white coats working together in lab

Side view of teacher and student working together in laboratory

Concentrated bearded chemist in goggles with reagents in tubes in laboratory

Two adult scientists and little student making experiment in chemical lab