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    Schoolboy examining leaves with magnifying glass in school laboratory. — Stock Photo
    Schoolboy examining leaves with magnifying glass in school laboratory.
    Doctor hand adjusting automated external defibrillator training. — Stock Photo
    Doctor hand adjusting automated external defibrillator training.
    Students writing their GCSE exam in classroom — Stock Photo
    Students writing their GCSE exam in classroom
    Teenage girl with books and laptop homeschooling on sofa — Stock Photo
    Teenage girl with books and laptop homeschooling on sofa
    University students discussing reports in laboratory — Stock Photo
    University students discussing reports in laboratory
    Students around a desk on a science lesson — Stock Photo
    Students around a desk on a science lesson
    Schoolkids holding sketch pens in classroom at school — Stock Photo
    Schoolkids holding sketch pens in classroom at school
    Schoolboy showing teeth in magnifying glass — Stock Photo
    Schoolboy showing teeth in magnifying glass
    Green colored probiotic rod-shaped gram-positive aerobic Bacillus clausii bacteria restoring microflora of intestine. — Stock Photo
    Green colored probiotic rod-shaped gram-positive aerobic Bacillus clausii bacteria restoring microflora of intestine.
    Plastic mannequin with artificial jaw for training dentistry students in medical schools and universities on white background — Stock Photo
    Plastic mannequin with artificial jaw for training dentistry students in medical schools and universities on white background
    Mid section of schoolgirl playing piano in music school — Stock Photo
    Mid section of schoolgirl playing piano in music school
    Student in wheelchair studying natural gas injector system on furnace with his classmate in HVAC classroom — Stock Photo
    Student in wheelchair studying natural gas injector system on furnace with his classmate in HVAC classroom
    College students discussing homework in stairway — Stock Photo
    College students discussing homework in stairway
    Young girl crouching down and looking for bugs in a rock wall — Stock Photo
    Young girl crouching down and looking for bugs in a rock wall
    Chef and student with Down Syndrome baking in kitchen — Stock Photo
    Chef and student with Down Syndrome baking in kitchen
    Girl reading book — Stock Photo
    Girl reading book
    Female skeleton on white background, computer illustration. — Stock Photo
    Female skeleton on white background, computer illustration.
    Young female college student taking a break from studying, texting with smart phone — Stock Photo
    Young female college student taking a break from studying, texting with smart phone
    3d rendered illustration of knee menisci in human skeleton. — Stock Photo
    3d rendered illustration of knee menisci in human skeleton.
    Young couple college students using cell phone and digital tablet at kitchen table — Stock Photo
    Young couple college students using cell phone and digital tablet at kitchen table
    Curious boy stacking large dominos in science center — Stock Photo
    Curious boy stacking large dominos in science center
    Young female with curly hair lying on bed reading book during weekend at home — Stock Photo
    Young female with curly hair lying on bed reading book during weekend at home
    Front view close up of a two young African schoolgirls writing in their notebooks during a lesson in a township elementary school classroom, in the background their classmates are also writing in their books — Stock Photo
    Front view close up of a two young African schoolgirls writing in their notebooks during a lesson in a township elementary school classroom, in the background their classmates are also writing in their books
    Happy high school students and teacher clapping in debate class — Stock Photo
    Happy high school students and teacher clapping in debate class
    Father helping son with his homework at home — Stock Photo
    Father helping son with his homework at home
    Portrait of cute little Chinese girl — Stock Photo
    Portrait of cute little Chinese girl
    Portrait happy young students with Down Syndrome in baking class — Stock Photo
    Portrait happy young students with Down Syndrome in baking class
    Blue human silhouette with visible brain on black background, digital illustration. — Stock Photo
    Blue human silhouette with visible brain on black background, digital illustration.
    Close-up of 3D illustration of brain-like pills in blister pack. — Stock Photo
    Close-up of 3D illustration of brain-like pills in blister pack.
    Person writing on whiteboard — Stock Photo
    Person writing on whiteboard
    Smiling young woman wearing headphones — Stock Photo
    Smiling young woman wearing headphones
    Abstract male silhouette with hips bones, computer illustration. — Stock Photo
    Abstract male silhouette with hips bones, computer illustration.
    Side view of little talented girl drawing painting sitting at easel against window at home — Stock Photo
    Side view of little talented girl drawing painting sitting at easel against window at home
    Young girl painting outside on wooden deck with cat in the background — Stock Photo
    Young girl painting outside on wooden deck with cat in the background
    College students entering in college — Stock Photo
    College students entering in college
    Illustration of colored kidneys in human body silhouette. — Stock Photo
    Illustration of colored kidneys in human body silhouette.
    Front view of a young African schoolboy sitting at his desk, raising his hand to answer a question during a lesson in a township elementary school classroom, around him classmates are sitting at their desks and listening attentively — Stock Photo
    Front view of a young African schoolboy sitting at his desk, raising his hand to answer a question during a lesson in a township elementary school classroom, around him classmates are sitting at their desks and listening attentively
    Illustration of human internal organs in body silhouette. — Stock Photo
    Illustration of human internal organs in body silhouette.
    Young college student with a books walking in library — Stock Photo
    Young college student with a books walking in library
    Unrecognizable man sketching in notepad near cup of coffee and laptop while sitting at table an working on remote project in cafeteria — Stock Photo
    Unrecognizable man sketching in notepad near cup of coffee and laptop while sitting at table an working on remote project in cafeteria
    Three Caucasian male chefs standing by a table, looking at pans and pots, talking to each other, with Caucasian female chefs in the foreground. Cookery class at a restaurant kitchen. — Stock Photo
    Three Caucasian male chefs standing by a table, looking at pans and pots, talking to each other, with Caucasian female chefs in the foreground. Cookery class at a restaurant kitchen.
    Teenagers and teacher talking in community center — Stock Photo
    Teenagers and teacher talking in community center
    Illustration of human thorax on white background. — Stock Photo
    Illustration of human thorax on white background.
    Hand of teacher pointing to molecular structure on projection screen — Stock Photo
    Hand of teacher pointing to molecular structure on projection screen
    Focused female artist with palette painting at easel in art class studio — Stock Photo
    Focused female artist with palette painting at easel in art class studio
    Male instructor leading dance class in studio — Stock Photo
    Male instructor leading dance class in studio
    Abstract male silhouette with hips bones, computer illustration. — Stock Photo
    Abstract male silhouette with hips bones, computer illustration.
    From above back view of crop male orthodontist using professional equipment while working with dental cast in modern laboratory — Stock Photo
    From above back view of crop male orthodontist using professional equipment while working with dental cast in modern laboratory
    Colored amygdala of human brain, digital illustration. — Stock Photo
    Colored amygdala of human brain, digital illustration.
    Happy students walking on street — Stock Photo
    Happy students walking on street
    Illustration of inflamed mammary glands in human body. — Stock Photo
    Illustration of inflamed mammary glands in human body.
    Abstract male silhouette with visible parathyroid glands, computer illustration. — Stock Photo
    Abstract male silhouette with visible parathyroid glands, computer illustration.
    Female paramedic practicing mouth-to-mouth while CPR training outdoors. — Stock Photo
    Female paramedic practicing mouth-to-mouth while CPR training outdoors.
    3d rendered illustration of sacrum in human skeleton. — Stock Photo
    3d rendered illustration of sacrum in human skeleton.
    Audience watching male speaker on stage — Stock Photo
    Audience watching male speaker on stage
    Young dreamy woman with piercing holding book on bench in city garden — Stock Photo
    Young dreamy woman with piercing holding book on bench in city garden
    Smiling teenage girl musician recording music, singing in sound booth — Stock Photo
    Smiling teenage girl musician recording music, singing in sound booth
    Red colored gallbladder in female body silhouette on white background, digital illustration. — Stock Photo
    Red colored gallbladder in female body silhouette on white background, digital illustration.
    Portrait close up of a Caucasian teenage boy with short blonde hair and blue eyes standing in a school classroom smiling to camera, with classmates talking in the background — Stock Photo
    Portrait close up of a Caucasian teenage boy with short blonde hair and blue eyes standing in a school classroom smiling to camera, with classmates talking in the background
    Community college instructor leading lesson in computer lab classroom — Stock Photo
    Community college instructor leading lesson in computer lab classroom