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    Human brain, conceptual illustration. — Stock Photo
    Human brain, conceptual illustration.
    Side view of man and woman in plaid shirts playing cards on plaid having picnic on shore of lake in cliffs — Stock Photo
    Side view of man and woman in plaid shirts playing cards on plaid having picnic on shore of lake in cliffs
    Close up of rack of test tubes with solution in lab — Stock Photo
    Close up of rack of test tubes with solution in lab
    Business people looking at whiteboard in office — Stock Photo
    Business people looking at whiteboard in office
    Human brain, conceptual illustration — Stock Photo
    Human brain, conceptual illustration
    Boy and girl on a science lesson — Stock Photo
    Boy and girl on a science lesson
    Businessmen balancing green blocks — Stock Photo
    Businessmen balancing green blocks
    Beaker, volumetric pipette and clipboard on table in laboratory — Stock Photo
    Beaker, volumetric pipette and clipboard on table in laboratory
    Emergency fire fighting helicopter with water bucket in Cape Town, South Africa. — Stock Photo
    Emergency fire fighting helicopter with water bucket in Cape Town, South Africa.
    Female doctor smiling and giving eye drops to a little girl in her bed. Home doctor concept — Stock Photo
    Female doctor smiling and giving eye drops to a little girl in her bed. Home doctor concept
    Girl and boys in a classroom — Stock Photo
    Girl and boys in a classroom
    Scientist pipetting solution into the glass test tube at lab — Stock Photo
    Scientist pipetting solution into the glass test tube at lab
    Thoughtful doubtful beautiful curly haired female in trendy eyeglasses and stylish colorful blouse with floral ornament looking at camera against pink background — Stock Photo
    Thoughtful doubtful beautiful curly haired female in trendy eyeglasses and stylish colorful blouse with floral ornament looking at camera against pink background
    Business people building pyramid to look out from maze — Stock Photo
    Business people building pyramid to look out from maze
    Side view of female psychologist with plate gesticulating and giving advice to unrecognizable client during psychotherapy appointment — Stock Photo
    Side view of female psychologist with plate gesticulating and giving advice to unrecognizable client during psychotherapy appointment
    Teacher assisting students in chemical experiment at laboratory — Stock Photo
    Teacher assisting students in chemical experiment at laboratory
    Mid section of male photographer opening a lens cover — Stock Photo
    Mid section of male photographer opening a lens cover
    Businesswoman with colleagues working at table — Stock Photo
    Businesswoman with colleagues working at table
    Serious pensive adult male theater artist with makeup and in elegant outfit looking away while thinking over decision — Stock Photo
    Serious pensive adult male theater artist with makeup and in elegant outfit looking away while thinking over decision
    Surgeon performing operation in operation theater at hospital — Stock Photo
    Surgeon performing operation in operation theater at hospital
    High angle of contents of medical drug poured out of blue colored capsule on yellow background — Stock Photo
    High angle of contents of medical drug poured out of blue colored capsule on yellow background
    Student writing formula and equations — Stock Photo
    Student writing formula and equations
    School in Grashoek village — Stock Photo
    School in Grashoek village
    Concerned Asian female sitting on sofa and listening to advice of psychologist during mental therapy — Stock Photo
    Concerned Asian female sitting on sofa and listening to advice of psychologist during mental therapy
    Plastic drip bag on white background. — Stock Photo
    Plastic drip bag on white background.
    Team of scientists experimenting together in laboratory — Stock Photo
    Team of scientists experimenting together in laboratory
    Man talking to woman completing jigsaw puzzle — Stock Photo
    Man talking to woman completing jigsaw puzzle
    Female scientist examining test tube in laboratory — Stock Photo
    Female scientist examining test tube in laboratory
    Teacher and children in math class — Stock Photo
    Teacher and children in math class
    From above of blue medical capsules placed on yellow background — Stock Photo
    From above of blue medical capsules placed on yellow background
    Through glass wall side view of female veterinary surgeon in medical uniform taking adhesive patch roll from shelf in hospital — Stock Photo
    Through glass wall side view of female veterinary surgeon in medical uniform taking adhesive patch roll from shelf in hospital
    Girl with neck support looking at doctor. — Stock Photo
    Girl with neck support looking at doctor.
    Teenage girl experimenting chemical solution in laboratory — Stock Photo
    Teenage girl experimenting chemical solution in laboratory
    Crop unrecognizable scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory — Stock Photo
    Crop unrecognizable scientist in white robe and gloves conducting chemical experiment with substance and syringe while working in modern laboratory
    Scientist holding samples in multi well plate during experiment in laboratory. — Stock Photo
    Scientist holding samples in multi well plate during experiment in laboratory.
    Attentive female scientist experimenting in laboratory — Stock Photo
    Attentive female scientist experimenting in laboratory
    Creative business people — Stock Photo
    Creative business people
    Scientists experimenting together in laboratory — Stock Photo
    Scientists experimenting together in laboratory
    Male scientist using microscope in laboratory — Stock Photo
    Male scientist using microscope in laboratory
    Overhead View of Student Working at Table on School Science Project — Stock Photo
    Overhead View of Student Working at Table on School Science Project
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Young black female medic standing near window and examining x ray scan while working in clinic — Stock Photo
    Young black female medic standing near window and examining x ray scan while working in clinic
    High angle of contents of medical drug poured out of blue colored capsule on yellow background — Stock Photo
    High angle of contents of medical drug poured out of blue colored capsule on yellow background
    School in Village of Maasai tribe — Stock Photo
    School in Village of Maasai tribe
    Doctor with medical model of human stomach with gastric band. — Stock Photo
    Doctor with medical model of human stomach with gastric band.
    Male photographer opening a lens cover in photo studio — Stock Photo
    Male photographer opening a lens cover in photo studio
    Girls and boys in a classroom — Stock Photo
    Girls and boys in a classroom
    Boy standing at a podium — Stock Photo
    Boy standing at a podium
    Business people preparing presentation — Stock Photo
    Business people preparing presentation
    University students in chemical experiment at laboratory — Stock Photo
    University students in chemical experiment at laboratory
    Girl at a screen making a presentation — Stock Photo
    Girl at a screen making a presentation
    Teacher teaching mathematics — Stock Photo
    Teacher teaching mathematics
    Pregnant woman applying cream on tummy — Stock Photo
    Pregnant woman applying cream on tummy
    Thoughtful doubtful beautiful curly haired female in trendy eyeglasses and stylish colorful blouse with floral ornament looking away against pink background — Stock Photo
    Thoughtful doubtful beautiful curly haired female in trendy eyeglasses and stylish colorful blouse with floral ornament looking away against pink background
    Nurse applying bandage to elementary age girl arm. — Stock Photo
    Nurse applying bandage to elementary age girl arm.
    Young teenager boy with a couple of light bulbs in front of his eyes innovation and imagination concept — Stock Photo
    Young teenager boy with a couple of light bulbs in front of his eyes innovation and imagination concept
    Crop female patient sitting with covered legs and intravenous fluid needle in hand before surgery in operating room — Stock Photo
    Crop female patient sitting with covered legs and intravenous fluid needle in hand before surgery in operating room
    African-American man in a fancy suit enjoying the sunset outside the office. — Stock Photo
    African-American man in a fancy suit enjoying the sunset outside the office.
    Man looking out from question mark — Stock Photo
    Man looking out from question mark
    Close-up of scientist doing experiment in lab — Stock Photo
    Close-up of scientist doing experiment in lab