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    Female teacher and students watching scientific experiment chemical reaction in laboratory classroom — Stock Photo
    Female teacher and students watching scientific experiment chemical reaction in laboratory classroom
    Illustration of stomach cancer in male body silhouette on black background. — Stock Photo
    Illustration of stomach cancer in male body silhouette on black background.
    Front view of a male Caucasian teacher holding a tablet and talking to a multi-ethnic group of teenagers in a school high school classroom sitting at desks and listening — Stock Photo
    Front view of a male Caucasian teacher holding a tablet and talking to a multi-ethnic group of teenagers in a school high school classroom sitting at desks and listening
    Illustration of triple star system HD131399 in space. — Stock Photo
    Illustration of triple star system HD131399 in space.
    Portrait smiling teenage girls designing denim jacket in fashion design class — Stock Photo
    Portrait smiling teenage girls designing denim jacket in fashion design class
    From above boy in jockey suit and helmet cleaning coat of skewbald pony with rough brush while standing on sandy ground of dressage arena in equestrian school — Stock Photo
    From above boy in jockey suit and helmet cleaning coat of skewbald pony with rough brush while standing on sandy ground of dressage arena in equestrian school
    Close-up illustration of thyroid gland in male body silhouette. — Stock Photo
    Close-up illustration of thyroid gland in male body silhouette.
    Illustration of human lung in body silhouette. — Stock Photo
    Illustration of human lung in body silhouette.
    Preschooler boy undergoing logic test with numbers for developmental psychology test in female psychologist office. — Stock Photo
    Preschooler boy undergoing logic test with numbers for developmental psychology test in female psychologist office.
    Human silhouette with blue illuminated brain on black background, digital illustration. — Stock Photo
    Human silhouette with blue illuminated brain on black background, digital illustration.
    Front view of an African American man at home, sitting at a table with his young daughter watching her drawing in a schoolbook, a laptop computer on the table in front of him, with the mother standing in the kitchen in the background — Stock Photo
    Front view of an African American man at home, sitting at a table with his young daughter watching her drawing in a schoolbook, a laptop computer on the table in front of him, with the mother standing in the kitchen in the background
    Low section of conservation volunteer cleaning up river in the countryside, carrying bag full of rubbish. Ecology and social responsibility in rural environment. — Stock Photo
    Low section of conservation volunteer cleaning up river in the countryside, carrying bag full of rubbish. Ecology and social responsibility in rural environment.
    Female paramedic with instructor CPR training on baby dummy outdoors. — Stock Photo
    Female paramedic with instructor CPR training on baby dummy outdoors.
    Young happy woman reading and resting on sofa at home — Stock Photo
    Young happy woman reading and resting on sofa at home
    College film students filming under urban bridge — Stock Photo
    College film students filming under urban bridge
    Artificial intelligence, conceptual illustration. — Stock Photo
    Artificial intelligence, conceptual illustration.
    College students with digital tablet studying in sunny park — Stock Photo
    College students with digital tablet studying in sunny park
    Man having coffee while reading a book in living room at home — Stock Photo
    Man having coffee while reading a book in living room at home
    Young female putting on earphones and browsing mobile phone while reading books — Stock Photo
    Young female putting on earphones and browsing mobile phone while reading books
    Side view of positive young man with backpack looking at camera while standing near window of modern building on city street — Stock Photo
    Side view of positive young man with backpack looking at camera while standing near window of modern building on city street
    Student in wheelchair taking notes while reading textbook in HVAC classroom — Stock Photo
    Student in wheelchair taking notes while reading textbook in HVAC classroom
    Mixed race girl sitting at desks wearing face mask in classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Mixed race girl sitting at desks wearing face mask in classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Two boys arm wrestling on grass — Stock Photo
    Two boys arm wrestling on grass
    Young female student using laptop while studying at desk in classroom — Stock Photo
    Young female student using laptop while studying at desk in classroom
    Curious boy examining molecule model in laboratory classroom — Stock Photo
    Curious boy examining molecule model in laboratory classroom
    Girl student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student using microscope, conducting scientific experiment in laboratory classroom
    Chinese college students with books talking in campus park in autumn — Stock Photo
    Chinese college students with books talking in campus park in autumn
    Multi ethnic group of elementary school children sitting at desks wearing face masks in classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Multi ethnic group of elementary school children sitting at desks wearing face masks in classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Close up portrait smiling, confident, cool teenage boy with boom box — Stock Photo
    Close up portrait smiling, confident, cool teenage boy with boom box
    Tween girl looking into microscope with dog looking on — Stock Photo
    Tween girl looking into microscope with dog looking on
    Smiling female artists painting wooden bench blue in art class workshop — Stock Photo
    Smiling female artists painting wooden bench blue in art class workshop
    Teacher and students at interactive exhibit in science center — Stock Photo
    Teacher and students at interactive exhibit in science center
    Anatomical male body with colored small intestine, computer illustration. — Stock Photo
    Anatomical male body with colored small intestine, computer illustration.
    Smiling little schoolgirl standing at roadside in city — Stock Photo
    Smiling little schoolgirl standing at roadside in city
    Cropped unrecognizable female in stylish clothes standing with book against white wall in daytime — Stock Photo
    Cropped unrecognizable female in stylish clothes standing with book against white wall in daytime
    Woman reading a book. — Stock Photo
    Woman reading a book.
    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.
    Tired young female college closing eyes at lunch — Stock Photo
    Tired young female college closing eyes at lunch
    Close-up of a small child sitting in a patch of light doing homework — Stock Photo
    Close-up of a small child sitting in a patch of light doing homework
    Side view of positive young African American female student in casual clothes and headphones smiling while sitting on cozy be and typing on laptop during online lesson at home — Stock Photo
    Side view of positive young African American female student in casual clothes and headphones smiling while sitting on cozy be and typing on laptop during online lesson at home
    College students studying and using digital tablet in park — Stock Photo
    College students studying and using digital tablet in park
    University professor with Muscular Dystrophy teaching in a classroom — Stock Photo
    University professor with Muscular Dystrophy teaching in a classroom
    Female paramedic CPR training on dummy outdoors. — Stock Photo
    Female paramedic CPR training on dummy outdoors.
    Malay Student Working On School Project At Laptop — Stock Photo
    Malay Student Working On School Project At Laptop
    Happy man in library — Stock Photo
    Happy man in library
    Low section of teenage boy standing on weighing scales. — Stock Photo
    Low section of teenage boy standing on weighing scales.
    Portrait smiling, confident grandfather and grandson playing piano and clarinet — Stock Photo
    Portrait smiling, confident grandfather and grandson playing piano and clarinet
    Close-up illustration of oesophagus in male body silhouette. — Stock Photo
    Close-up illustration of oesophagus in male body silhouette.
    Students taking notes in adult education classroom — Stock Photo
    Students taking notes in adult education classroom
    Portrait of happy mixed race male conservation volunteer cleaning up forest in the countryside, holding rubbish bag, smiling to camera. Ecology and social responsibility in rural environment. — Stock Photo
    Portrait of happy mixed race male conservation volunteer cleaning up forest in the countryside, holding rubbish bag, smiling to camera. Ecology and social responsibility in rural environment.
    Male artists sketching in art class studio — Stock Photo
    Male artists sketching in art class studio
    Abstract male silhouette with visible lumbar spine, computer illustration. — Stock Photo
    Abstract male silhouette with visible lumbar spine, computer illustration.
    Chinese children visiting science and technology museum — Stock Photo
    Chinese children visiting science and technology museum
    View from above high school students taking exam at desks in classroom — Stock Photo
    View from above high school students taking exam at desks in classroom
    Little kid standing at blackboard in classroom — Stock Photo
    Little kid standing at blackboard in classroom
    Man in a wheelchair with a Spinal Cord Injury choosing books from a shelve in a library — Stock Photo
    Man in a wheelchair with a Spinal Cord Injury choosing books from a shelve in a library
    Portrait of disable mixed race boy wearing face mask, sitting in his wheelchair in the classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Portrait of disable mixed race boy wearing face mask, sitting in his wheelchair in the classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Frustrated boy doing homework at breakfast — Stock Photo
    Frustrated boy doing homework at breakfast
    Female musculature in transparent body, computer illustration. — Stock Photo
    Female musculature in transparent body, computer illustration.
    Teacher and Young Students — Stock Photo
    Teacher and Young Students