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    Human organs in container on desk — Stock Photo
    Human organs in container on desk
    Attentive university student doing a chemical experiment in laboratory — Stock Photo
    Attentive university student doing a chemical experiment in laboratory
    Man sewing sail — Stock Photo
    Man sewing sail
    From above of charming blond little girl laughing brightly at camera while playing synthesizer at home — Stock Photo
    From above of charming blond little girl laughing brightly at camera while playing synthesizer at home
    University students walking in corridor of university — Stock Photo
    University students walking in corridor of university
    University student raising hand in classroom at university — Stock Photo
    University student raising hand in classroom at university
    Teacher assisting schoolboy writing — Stock Photo
    Teacher assisting schoolboy writing
    Young woman removing a book from bookshelf in library — Stock Photo
    Young woman removing a book from bookshelf in library
    Side view of a young Asian female student wearing a hijab using a smartphone and studying in a library — Stock Photo
    Side view of a young Asian female student wearing a hijab using a smartphone and studying in a library
    Portrait of university student sitting at desk with hand on chin — Stock Photo
    Portrait of university student sitting at desk with hand on chin
    African american student raising hand in class — Stock Photo
    African american student raising hand in class
    Close up of pipettes in plastic stand on table in lab — Stock Photo
    Close up of pipettes in plastic stand on table in lab
    Smiling students at computer in adult education classroom — Stock Photo
    Smiling students at computer in adult education classroom
    Boy reading book on coffee table — Stock Photo
    Boy reading book on coffee table
    Thoughtful woman sitting in library room — Stock Photo
    Thoughtful woman sitting in library room
    Young elegant woman in eyeglasses reading book and sitting on stairs — Stock Photo
    Young elegant woman in eyeglasses reading book and sitting on stairs
    African american student raising hand in class — Stock Photo
    African american student raising hand in class
    Woman sitting on window and reading a book at home — Stock Photo
    Woman sitting on window and reading a book at home
    Side view of a male Caucasian teacher standing and talking with a teenage Caucasian girl working on a computer and concentrating in a classroom, with teenage male and female classmates sitting at desks working in the background and foreground — Stock Photo
    Side view of a male Caucasian teacher standing and talking with a teenage Caucasian girl working on a computer and concentrating in a classroom, with teenage male and female classmates sitting at desks working in the background and foreground
    Young man reading a book in library — Stock Photo
    Young man reading a book in library
    Chef in a small commercial kitchen — Stock Photo
    Chef in a small commercial kitchen
    Desks in classroom at college — Stock Photo
    Desks in classroom at college
    Unshaven Hispanic male in white apparel sitting with closed eyes during meditation among golden grass in daylight — Stock Photo
    Unshaven Hispanic male in white apparel sitting with closed eyes during meditation among golden grass in daylight
    University students studying in library — Stock Photo
    University students studying in library
    Front view of two young African schoolgirls sitting at their desk, one raising her hand to answer a question and the other writing in her notebook during a lesson — Stock Photo
    Front view of two young African schoolgirls sitting at their desk, one raising her hand to answer a question and the other writing in her notebook during a lesson
    Senior woman sitting at table and using digital tablet with touch screen. — Stock Photo
    Senior woman sitting at table and using digital tablet with touch screen.
    Excited adorable asian schoolboy looking away at chemistry class at school — Stock Photo
    Excited adorable asian schoolboy looking away at chemistry class at school
    Girl practicing science experiment in laboratory — Stock Photo
    Girl practicing science experiment in laboratory
    Female student with arms crossed standing in lab — Stock Photo
    Female student with arms crossed standing in lab
    Focused female college student researching using computer in library — Stock Photo
    Focused female college student researching using computer in library
    Photographer taking picture of coral at the Great Barrier Reef — Stock Photo
    Photographer taking picture of coral at the Great Barrier Reef
    Portrait confident young female college student with headphones at laptop — Stock Photo
    Portrait confident young female college student with headphones at laptop
    College students using laptop and drinking coffee — Stock Photo
    College students using laptop and drinking coffee
    Students raising hands in classroom — Stock Photo
    Students raising hands in classroom
    Close-up of book on table — Stock Photo
    Close-up of book on table
    Woman turning pages in book — Stock Photo
    Woman turning pages in book
    Front view of multi-ethnic group of teenagers in a high school classroom sitting at desks, all raising their hands to answer a question — Stock Photo
    Front view of multi-ethnic group of teenagers in a high school classroom sitting at desks, all raising their hands to answer a question
    Portrait smiling female college student taking notes in science laboratory classroom — Stock Photo
    Portrait smiling female college student taking notes in science laboratory classroom
    Side view of Caucasian woman reading a book while relaxing on sofa in living room at home — Stock Photo
    Side view of Caucasian woman reading a book while relaxing on sofa in living room at home
    From above anonymous guy in casual clothes listening to music on smartphone and making notes in notepad while sitting on step on city street — Stock Photo
    From above anonymous guy in casual clothes listening to music on smartphone and making notes in notepad while sitting on step on city street
    Chef preparing a crab. — Stock Photo
    Chef preparing a crab.
    College students experimenting on microscope in laboratory at university — Stock Photo
    College students experimenting on microscope in laboratory at university
    Stylish man with backpack looking away standing in yard with red metal construction in sunny day — Stock Photo
    Stylish man with backpack looking away standing in yard with red metal construction in sunny day
    Female student in home clothes reading notes while doing homework in kitchen — Stock Photo
    Female student in home clothes reading notes while doing homework in kitchen
    Teenage boy checking time on smartwatch in corridor — Stock Photo
    Teenage boy checking time on smartwatch in corridor
    Professor watching college students taking test in classroom — Stock Photo
    Professor watching college students taking test in classroom
    Male student showing clipboard to classmate while practicing chemistry experiment in lab — Stock Photo
    Male student showing clipboard to classmate while practicing chemistry experiment in lab
    Modern university buildings, wooden beams projecting from a curved wood cladding wall, on a curved ground surface — Stock Photo
    Modern university buildings, wooden beams projecting from a curved wood cladding wall, on a curved ground surface
    Concentrated woman reading a book at laundromat — Stock Photo
    Concentrated woman reading a book at laundromat
    Woman standing next to sheep pen — Stock Photo
    Woman standing next to sheep pen
    High angle view of young male student studying at desk in classroom — Stock Photo
    High angle view of young male student studying at desk in classroom
    Woman sitting on bed and reading a book at home — Stock Photo
    Woman sitting on bed and reading a book at home
    Woman drawing a sketch in a book at home — Stock Photo
    Woman drawing a sketch in a book at home
    Young male college student studying at desk in classroom — Stock Photo
    Young male college student studying at desk in classroom
    Girl reading a book in living room at home — Stock Photo
    Girl reading a book in living room at home
    Side view of college student using laptop in library — Stock Photo
    Side view of college student using laptop in library
    Happy mature female teacher sitting at school desk — Stock Photo
    Happy mature female teacher sitting at school desk
    Farrier filing hoof of horse — Stock Photo
    Farrier filing hoof of horse
    Portrait of a young mixed race female fashion student with a tape measure around her neck standing in a studio at fashion college — Stock Photo
    Portrait of a young mixed race female fashion student with a tape measure around her neck standing in a studio at fashion college
    Junior high schoolgirls — Stock Photo
    Junior high schoolgirls