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    Junior high students at computers watching teacher at projection screen in classroom — Stock Photo
    Junior high students at computers watching teacher at projection screen in classroom
    Hand holding wild grass stem — Stock Photo
    Hand holding wild grass stem
    Pieces of fresh green Aloe Vera with white flesh on light background. — Stock Photo
    Pieces of fresh green Aloe Vera with white flesh on light background.
    Close-up view of a toadstool in moonlight — Stock Photo
    Close-up view of a toadstool in moonlight
    Crop view of male in orange shirt holding dark elegant stem glass with white Nordic beverage sprinkled with powder and dried flowers on blurred background — Stock Photo
    Crop view of male in orange shirt holding dark elegant stem glass with white Nordic beverage sprinkled with powder and dried flowers on blurred background
    Playground with swings and slide covered with snow among bare trees in winter day in gloomy weather in Madrid — Stock Photo
    Playground with swings and slide covered with snow among bare trees in winter day in gloomy weather in Madrid
    Exotic hummingbird sitting on twig on blurred background — Stock Photo
    Exotic hummingbird sitting on twig on blurred background
    Brain spinal cord anatomy — Stock Photo
    Brain spinal cord anatomy
    Whole ripe green apple with foliage and pure small aqua drips on black background — Stock Photo
    Whole ripe green apple with foliage and pure small aqua drips on black background
    Computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in office
    Swiss Chard at a organic farmer s market — Stock Photo
    Swiss Chard at a organic farmer s market
    Female science teacher and girl student writing at whiteboard in classroom — Stock Photo
    Female science teacher and girl student writing at whiteboard in classroom
    Broccoli on wooden table — Stock Photo
    Broccoli on wooden table
    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
    Campopleginae pupa covered by dew drops on stem. — Stock Photo
    Campopleginae pupa covered by dew drops on stem.
    Top view of raw cut Boletus edulis mushrooms on wooden chopping board with garlic and parsley in light kitchen during cooking process — Stock Photo
    Top view of raw cut Boletus edulis mushrooms on wooden chopping board with garlic and parsley in light kitchen during cooking process
    Close-up of ballet shoes and roses on stage — Stock Photo
    Close-up of ballet shoes and roses on stage
    Close up of fern leaf patterns — Stock Photo
    Close up of fern leaf patterns
    Female teacher and students programming and assembling robotics in classroom — Stock Photo
    Female teacher and students programming and assembling robotics in classroom
    Close-up of bee fly hanging on wildflower stem. — Stock Photo
    Close-up of bee fly hanging on wildflower stem.
    Flower of sea holly plant on white background. — Stock Photo
    Flower of sea holly plant on white background.
    Seven spot ladybird walking on dried stem. — Stock Photo
    Seven spot ladybird walking on dried stem.
    Small spider reaching a leg toward dew covered spiderweb — Stock Photo
    Small spider reaching a leg toward dew covered spiderweb
    Illustration of pink stem cell on black background. — Stock Photo
    Illustration of pink stem cell on black background.
    Portrait male science teacher teaching DNA lesson at projection screen — Stock Photo
    Portrait male science teacher teaching DNA lesson at projection screen
    Stem cell research — Stock Photo
    Stem cell research
    Male teacher and boy student conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and boy student conducting scientific experiment in laboratory classroom
    Close up of purple alium flower — Stock Photo
    Close up of purple alium flower
    Rustic flower stems in ceramic vase — Stock Photo
    Rustic flower stems in ceramic vase
    Pieces of fresh green Aloe Vera with white flesh in glass bowl — Stock Photo
    Pieces of fresh green Aloe Vera with white flesh in glass bowl
    Chocolate macarons in a long-stemmed glass — Stock Photo
    Chocolate macarons in a long-stemmed glass
    Scenery of hill covered with snow and bare shrubs growing in winter nature under cloudless blue sky — Stock Photo
    Scenery of hill covered with snow and bare shrubs growing in winter nature under cloudless blue sky
    Female engineer planning, creating flow chart in office — Stock Photo
    Female engineer planning, creating flow chart in office
    Top view minimalistic composition of green spiky cactus branches scattered on bright orange background — Stock Photo
    Top view minimalistic composition of green spiky cactus branches scattered on bright orange background
    Pink Cadillac Cocktail — Stock Photo
    Pink Cadillac Cocktail
    Butterfly and snail on a flower, Indonesia — Stock Photo
    Butterfly and snail on a flower, Indonesia
    Glass of sweet alcoholic cocktail made of espresso liqueur milk and chocolate placed on wooden table — Stock Photo
    Glass of sweet alcoholic cocktail made of espresso liqueur milk and chocolate placed on wooden table
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    Shiny ripe red cherries on black background — Stock Photo
    Shiny ripe red cherries on black background
    Grapes And Bread in basket — Stock Photo
    Grapes And Bread in basket
    Midsection of girl in pink clothes holding snowdrops — Stock Photo
    Midsection of girl in pink clothes holding snowdrops
    Glass vases with dried plants and branches covered with leaves decorating room of home — Stock Photo
    Glass vases with dried plants and branches covered with leaves decorating room of home
    Computer programmers programming virtual reality simulator glasses in office — Stock Photo
    Computer programmers programming virtual reality simulator glasses in office
    Closeup of fern stem on blurred background — Stock Photo
    Closeup of fern stem on blurred background
    Close-up shot of delicious Rainbow chard — Stock Photo
    Close-up shot of delicious Rainbow chard
    Plant vascular tissue, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Plant vascular tissue, light micrograph. Haematoxylin and eosin stain.
    Unrecognizable female with red flower pestle sitting at table with white tablecloth near green foliage while cultivating plant at home — Stock Photo
    Unrecognizable female with red flower pestle sitting at table with white tablecloth near green foliage while cultivating plant at home
    Glasses of White Wine with Name Tags — Stock Photo
    Glasses of White Wine with Name Tags
    Smiling girl students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Smiling girl students examining liquid in test tube, conducting scientific experiment in laboratory classroom
    Close-up of flesh fly covered by dew drops at top of wild plant stem. — Stock Photo
    Close-up of flesh fly covered by dew drops at top of wild plant stem.
    Female scientist holding tray for stem cell research. — Stock Photo
    Female scientist holding tray for stem cell research.
    Female cell biologist examining flask containing stem cells cultivated in red growth medium. — Stock Photo
    Female cell biologist examining flask containing stem cells cultivated in red growth medium.
    Closeup view of one chive flower — Stock Photo
    Closeup view of one chive flower
    Close-up view of wildflowers against blurred background — Stock Photo
    Close-up view of wildflowers against blurred background
    Lime tree stem — Stock Photo
    Lime tree stem
    Little boy examining bug under microscope — Stock Photo
    Little boy examining bug under microscope
    From above of small green echeveria plant placed on wooden table with roots and dirt in light place — Stock Photo
    From above of small green echeveria plant placed on wooden table with roots and dirt in light place
    Top view of raw cut Boletus edulis mushrooms on wooden chopping board with garlic and parsley in light kitchen during cooking process — Stock Photo
    Top view of raw cut Boletus edulis mushrooms on wooden chopping board with garlic and parsley in light kitchen during cooking process
    Male junior high teacher leading lesson at projection screen in classroom — Stock Photo
    Male junior high teacher leading lesson at projection screen in classroom
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves