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    Side view of a teenage Caucasian boy and a teenage African American girl in a high school classroom sitting at desks, working together and reading, with teenage classmates sitting at desks working in the background — Stock Photo
    Side view of a teenage Caucasian boy and a teenage African American girl in a high school classroom sitting at desks, working together and reading, with teenage classmates sitting at desks working in the background
    Illustration of human shoulder anatomy on white background. — Stock Photo
    Illustration of human shoulder anatomy on white background.
    Red and white blood cells — Stock Photo
    Red and white blood cells
    3d illustration of cross-section of ebola pathogen. — Stock Photo
    3d illustration of cross-section of ebola pathogen.
    Young spanish boy doing homework while using a mask — Stock Photo
    Young spanish boy doing homework while using a mask
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom looking straight to camera — Stock Photo
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom looking straight to camera
    Mid section illustration of bronchi in male body silhouette. — Stock Photo
    Mid section illustration of bronchi in male body silhouette.
    Students holding long rocket — Stock Photo
    Students holding long rocket
    Portrait of a kid holding a camera as another kid stands next him — Stock Photo
    Portrait of a kid holding a camera as another kid stands next him
    Scientific laboratory researcher using test tube and microscope. — Stock Photo
    Scientific laboratory researcher using test tube and microscope.
    Focused high school girl student taking exam at desk in classroom — Stock Photo
    Focused high school girl student taking exam at desk in classroom
    Junior high school students with backpacks in classroom — Stock Photo
    Junior high school students with backpacks in classroom
    Front view of two Caucasian teenage boys and a mixed race teenage girl in discussion, holding scripts and smiling in the auditorium of an empty school theatre during rehearsals for a performance — Stock Photo
    Front view of two Caucasian teenage boys and a mixed race teenage girl in discussion, holding scripts and smiling in the auditorium of an empty school theatre during rehearsals for a performance
    Teacher erasing European Union and leaving map of British Isles — Stock Photo
    Teacher erasing European Union and leaving map of British Isles
    Female paramedic with instructor CPR training on baby dummy outdoors. — Stock Photo
    Female paramedic with instructor CPR training on baby dummy outdoors.
    Illustration of senior woman silhouette showing adrenal glands on black background. — Stock Photo
    Illustration of senior woman silhouette showing adrenal glands on black background.
    Teenage girl leading dance class in studio — Stock Photo
    Teenage girl leading dance class in studio
    From below black woman with dreadlocks smiling and using tablet while sitting in illuminated lecture hall during lesson — Stock Photo
    From below black woman with dreadlocks smiling and using tablet while sitting in illuminated lecture hall during lesson
    Junior high school students pointing at globe in geography teacher hands — Stock Photo
    Junior high school students pointing at globe in geography teacher hands
    University students looking at test results in corridor — Stock Photo
    University students looking at test results in corridor
    Teacher talking to black students at chalkboard — Stock Photo
    Teacher talking to black students at chalkboard
    Mixed race boy wearing face mask getting his temperature measured in an elementary school. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Mixed race boy wearing face mask getting his temperature measured in an elementary school. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Rural female teacher and chinese pupils using laptop computer together in school — Stock Photo
    Rural female teacher and chinese pupils using laptop computer together in school
    Male community college instructor teaching lesson at laptop and projection screen in classroom — Stock Photo
    Male community college instructor teaching lesson at laptop and projection screen in classroom
    Focused young Latin American female student taking notes in planner while working on laptop preparing for university exam in cozy cafe — Stock Photo
    Focused young Latin American female student taking notes in planner while working on laptop preparing for university exam in cozy cafe
    Primary school students in rural primary school — Stock Photo
    Primary school students in rural primary school
    Teen boy jockey in helmet looking at camera while riding brown horse on dressage arena during training in equestrian school — Stock Photo
    Teen boy jockey in helmet looking at camera while riding brown horse on dressage arena during training in equestrian school
    Front close up of a Caucasian teenage girl and boy embracing and smiling at each other standing in the sun in their school grounds — Stock Photo
    Front close up of a Caucasian teenage girl and boy embracing and smiling at each other standing in the sun in their school grounds
    Female student looking in window — Stock Photo
    Female student looking in window
    Female anatomical model with yellow colored and visible lungs, computer illustration. — Stock Photo
    Female anatomical model with yellow colored and visible lungs, computer illustration.
    Young woman using a laptop in the library — Stock Photo
    Young woman using a laptop in the library
    College graduates in cap and gown holding diplomas posing for selfie — Stock Photo
    College graduates in cap and gown holding diplomas posing for selfie
    Male anatomy showing Flexor carpi radialis muscle, computer illustration. — Stock Photo
    Male anatomy showing Flexor carpi radialis muscle, computer illustration.
    Front Entrance to an Elementary School — Stock Photo
    Front Entrance to an Elementary School
    Close up view of open book — Stock Photo
    Close up view of open book
    Black man sitting in cafe and writing — Stock Photo
    Black man sitting in cafe and writing
    Portrait smiling female college students studying at laptop in cafe — Stock Photo
    Portrait smiling female college students studying at laptop in cafe
    Portrait of a cute Latin girl — Stock Photo
    Portrait of a cute Latin girl
    Schoolboy putting leaves on microscope slide in school laboratory. — Stock Photo
    Schoolboy putting leaves on microscope slide in school laboratory.
    Funny smiling kid playing with toy tower and sitting on floor in room — Stock Photo
    Funny smiling kid playing with toy tower and sitting on floor in room
    Junior high students walking around smiling female teacher — Stock Photo
    Junior high students walking around smiling female teacher
    From above of crop male dentistry student in uniform and gloves preparing dental simulator for treatment during work in modern classroom — Stock Photo
    From above of crop male dentistry student in uniform and gloves preparing dental simulator for treatment during work in modern classroom
    Illustration of human heart in body silhouette. — Stock Photo
    Illustration of human heart in body silhouette.
    Group of children in a classroom — Stock Photo
    Group of children in a classroom
    Schoolchildren talking in corridor — Stock Photo
    Schoolchildren talking in corridor
    Young Students standing in corridor — Stock Photo
    Young Students standing in corridor
    Male student embracing friend — Stock Photo
    Male student embracing friend
    Male teacher calling on students in classroom — Stock Photo
    Male teacher calling on students in classroom
    Illustration of human skeleton on blue background. — Stock Photo
    Illustration of human skeleton on blue background.
    3d illustration of flu pathogen in cross-section. — Stock Photo
    3d illustration of flu pathogen in cross-section.
    The girl has breakfast and looks at the phone — Stock Photo
    The girl has breakfast and looks at the phone
    Watercolors on the table, Crafts — Stock Photo
    Watercolors on the table, Crafts
    Enthusiastic audience clapping and cheering — Stock Photo
    Enthusiastic audience clapping and cheering
    Audience on conference hall, business meeting and people concept — Stock Photo
    Audience on conference hall, business meeting and people concept
    Male student making notes on street — Stock Photo
    Male student making notes on street
    Digital illustration of human alveoli on white background. — Stock Photo
    Digital illustration of human alveoli on white background.
    Eyewear on open textbook against ceramic saucer with cup and dried plant on table in house — Stock Photo
    Eyewear on open textbook against ceramic saucer with cup and dried plant on table in house
    Chinese man and woman studying with headphones in cafe — Stock Photo
    Chinese man and woman studying with headphones in cafe
    Child looking at camera in jockey costume sitting in saddle of a pony during lesson in horseback riding school — Stock Photo
    Child looking at camera in jockey costume sitting in saddle of a pony during lesson in horseback riding school
    Chinese school students studying with textbooks in rural primary school — Stock Photo
    Chinese school students studying with textbooks in rural primary school