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    Side view of cheerful cute girl standing on pile of books near wall and measuring her height and looking up — Stock Photo
    Side view of cheerful cute girl standing on pile of books near wall and measuring her height and looking up
    Realistic human fetus at week 8, computer illustration. — Stock Photo
    Realistic human fetus at week 8, computer illustration.
    High Rise Council Housing, Limehouse, East London, London, England, UK — Stock Photo
    High Rise Council Housing, Limehouse, East London, London, England, UK
    Instructor training students about air conditioning units in HVAC classroom — Stock Photo
    Instructor training students about air conditioning units in HVAC classroom
    Front view close up of a young African schoolboy sitting at a desk and raising his hand to answer a question during a lesson in a township elementary school classroom, in the background is a world map and the blackboard — Stock Photo
    Front view close up of a young African schoolboy sitting at a desk and raising his hand to answer a question during a lesson in a township elementary school classroom, in the background is a world map and the blackboard
    Schoolkids holding hands in school campus on a sunny day — Stock Photo
    Schoolkids holding hands in school campus on a sunny day
    Hackers coding for charity at hackathon — Stock Photo
    Hackers coding for charity at hackathon
    Worker standing by machinery on site — Stock Photo
    Worker standing by machinery on site
    View of fetus at 7 weeks — Stock Photo
    View of fetus at 7 weeks
    Human fetus developing at week 38, computer illustration. — Stock Photo
    Human fetus developing at week 38, computer illustration.
    Realistic human fetus at week 26, computer illustration. — Stock Photo
    Realistic human fetus at week 26, computer illustration.
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (blue) are seen in the heads. Zebrafish eggs are transparent — Stock Photo
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (blue) are seen in the heads. Zebrafish eggs are transparent
    Back view of farmer near agriculture field with spade on shoulders against sun — Stock Photo
    Back view of farmer near agriculture field with spade on shoulders against sun
    Illustration of human foetus on week 19 term. — Stock Photo
    Illustration of human foetus on week 19 term.
    Carpenter climbing ladder to upper level — Stock Photo
    Carpenter climbing ladder to upper level
    Human fetus at week 10, computer illustration. — Stock Photo
    Human fetus at week 10, computer illustration.
    View of Fetus at 13 weeks — Stock Photo
    View of Fetus at 13 weeks
    Various sprouted seeds in Petri dishes. — Stock Photo
    Various sprouted seeds in Petri dishes.
    View of Fetus at 38 weeks — Stock Photo
    View of Fetus at 38 weeks
    Attentive university student using digital tablet in laboratory — Stock Photo
    Attentive university student using digital tablet in laboratory
    Close-up of pipetting sample into row of test tubes during experiment in laboratory. — Stock Photo
    Close-up of pipetting sample into row of test tubes during experiment in laboratory.
    Computer programmers testing virtual reality simulators in office — Stock Photo
    Computer programmers testing virtual reality simulators in office
    Focused unrecognizable young female astronaut in spacesuit and helmet standing in snowy woodland — Stock Photo
    Focused unrecognizable young female astronaut in spacesuit and helmet standing in snowy woodland
    Human Embryo at 5 weeks — Stock Photo
    Human Embryo at 5 weeks
    Portrait of smiling volunteers holding construction frame at construction site — Stock Photo
    Portrait of smiling volunteers holding construction frame at construction site
    Teenage boy experimenting chemical solution in laboratory — Stock Photo
    Teenage boy experimenting chemical solution in laboratory
    A toddler girl with glasses coloring with her family together at table — Stock Photo
    A toddler girl with glasses coloring with her family together at table
    Illustration of silhouette of pregnant woman and 12 week foetus. — Stock Photo
    Illustration of silhouette of pregnant woman and 12 week foetus.
    Human fetus developing at week 29, computer illustration. — Stock Photo
    Human fetus developing at week 29, computer illustration.
    Carpenter measuring a particle board at a building construction site — Stock Photo
    Carpenter measuring a particle board at a building construction site
    Laptop at workstation in quarry during daytie — Stock Photo
    Laptop at workstation in quarry during daytie
    Illustration of silhouette of pregnant woman and 17 week foetus. — Stock Photo
    Illustration of silhouette of pregnant woman and 17 week foetus.
    Scenic view of rolling green farmland landscape with trees, Czech Republic — Stock Photo
    Scenic view of rolling green farmland landscape with trees, Czech Republic
    Lakeside view of Mountains, National Forest Development, Idaho, USA — Stock Photo
    Lakeside view of Mountains, National Forest Development, Idaho, USA
    Bulldozer levelling soil at construction site — Stock Photo
    Bulldozer levelling soil at construction site
    Aerial view of illuminated business district at night — Stock Photo
    Aerial view of illuminated business district at night
    Animal cell during cytokinesis (cell division), illustration. — Stock Photo
    Animal cell during cytokinesis (cell division), illustration.
    New buildings surrouded by greenery in a new area in a Parisian suburb — Stock Photo
    New buildings surrouded by greenery in a new area in a Parisian suburb
    Osteoclast cell structure — Stock Photo
    Osteoclast cell structure
    Hispanic carpenter hammering metal reinforcement bracing at a house under construction — Stock Photo
    Hispanic carpenter hammering metal reinforcement bracing at a house under construction
    Portrait of university student in protective eyewear at laboratory — Stock Photo
    Portrait of university student in protective eyewear at laboratory
    Carpenters using circular saw at a construction site — Stock Photo
    Carpenters using circular saw at a construction site
    Carpenter cutting a joist with a circular saw at building construction site — Stock Photo
    Carpenter cutting a joist with a circular saw at building construction site
    Side view of a mixed race male athlete practicing at a sports stadium, sprinting off the starting blocks at the beginning of a race — Stock Photo
    Side view of a mixed race male athlete practicing at a sports stadium, sprinting off the starting blocks at the beginning of a race
    Illustration of red human embryo on black background at pregnancy stage of week 19. — Stock Photo
    Illustration of red human embryo on black background at pregnancy stage of week 19.
    Hispanic carpenter hammering nails on board at a house under construction — Stock Photo
    Hispanic carpenter hammering nails on board at a house under construction
    Construction worker loading timber on bulldozer at construction site — Stock Photo
    Construction worker loading timber on bulldozer at construction site
    Physical therapist holding boy on fitness ball — Stock Photo
    Physical therapist holding boy on fitness ball
    Female designer using computer in office — Stock Photo
    Female designer using computer in office
    Teenage boy using virtual reality headset while studying in computer class at university — Stock Photo
    Teenage boy using virtual reality headset while studying in computer class at university
    Mixed race boy wearing face mask, sanitizing his hands while sitting on her desk at classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Mixed race boy wearing face mask, sanitizing his hands while sitting on her desk at classroom. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Boy in a school library — Stock Photo
    Boy in a school library
    Developing pig eye — Stock Photo
    Developing pig eye
    Urban scene of office building and cars in daylight — Stock Photo
    Urban scene of office building and cars in daylight
    Baseball players standing on line and kneeling — Stock Photo
    Baseball players standing on line and kneeling
    Side view of a young African schoolgirl standing at the front of the class writing on the blackboard during a lesson in a township elementary school classroom — Stock Photo
    Side view of a young African schoolgirl standing at the front of the class writing on the blackboard during a lesson in a township elementary school classroom
    Side view of a mixed race male athlete practicing at a sports stadium, looking away from the camera. Track and Field Sports Training in Stadium. — Stock Photo
    Side view of a mixed race male athlete practicing at a sports stadium, looking away from the camera. Track and Field Sports Training in Stadium.
    Front view of a Caucasian male athlete practicing at a sports stadium, in position on the starting blocks, preparing to sprint, with his head up — Stock Photo
    Front view of a Caucasian male athlete practicing at a sports stadium, in position on the starting blocks, preparing to sprint, with his head up
    Human fetus developing at week 4, computer illustration. — Stock Photo
    Human fetus developing at week 4, computer illustration.
    Carpenter using a circular saw on studs — Stock Photo
    Carpenter using a circular saw on studs