Medicine professional making research experimental substance in laboratory close up. Involved scientist man filling test tube using pipette
scientist thinking
Happy scientists invented medicines from coronavirus giving five closeup. Excited lab researchers rejoicing medical success in laboratory.
Pensive agronomist studying plant genetics in sunflower field
Paranoid alien conspiracy theorist on phone
Confident proud smart man in his 30s or 40s pointing at himself acknowledging his achievement at a job well done solving a complex problem
The face of the thinking person in glasses. evening night time
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Intelligent doctor analyzing medication efficiency and side effects indoors
Talented student studying chemistry and writing molecular formulas on glass wall
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Intelligent young person solving problems in front of a chalkboard
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Rear view of man against chalkboard with math formula equations. He think about solution and try to understand high university task.
Thoughtful african american female crop scientist in white coat and spectacles examining plant condition and crop quality, writing data into clipboard during inspection in sunflower agricultural field
WWII scientist working on the Enigma code machine
Portrait of a Thoughtful Expert Examining Vaccine Ampoules
Exhausted chemistry student staying up all night working on his final project
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The person in glasses thinking. evening night time
Laboratory technician mixes the reagent with liquid in flasks. Research of medicinal properties of plants. Natural cosmetics production
Scientist using digital tablet in office 4k
The serious man in glasses thinking. evening night time
Confused red-haired student solving math problem at college. Achievement and difficulties concept.
Scientist checking pH of liquid - wide shot, close up
Doctor or scientist thinks about a problem and finds a solution, close-up
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vintage scientist looking and studying a bottle of radium
Restless African American man sitting in hospital analyzing diagnosis. Medium shot portrait of serious concentrated professional doctor thinking sitting at table indoors. Medicine concept.
scientist reading and thinking about notes he has on a pad
Scientist smart clever man in white work robe and spectacles near chalk board with equations and formula, drink coffee and smile at camera, 4k UHD.
Thoughtful man in laboratory contemplating on promotion of 3-D technologies into medical researches and practices.
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Young doctor analyzing medical results at computer and taking notes
vintage scientist looking and studying a bottle of radium glow
The face of the serious man in glasses. evening night time
Puzzled woman doctor or nurse thinking over blue background over blue background
Young Latin woman scientist ponders problem at library
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Scientist at work in laboratory. Young researcher deep in thought. Portrait of lab worker in safety glasses. Chemist conducting experiments. Closeup of lab professional in white coat.
Portrait of scientist in lab. Close up of chemist in chemical laboratory. Portrait of scientist thinking in science lab. Closeup of researcher at research laboratory. Laboratory worker