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    Student in wheelchair examining air conditioner high pressure line in HVAC classroom — Stock Photo
    Student in wheelchair examining air conditioner high pressure line in HVAC classroom
    Close-up of single gentle twig in grassland — Stock Photo
    Close-up of single gentle twig in grassland
    Human brain anatomy — Stock Photo
    Human brain anatomy
    From above of crop happy ethnic young female florist in apron smiling and cutting wrapping paper while arranging elegant bouquet of fresh assorted colorful flowers — Stock Photo
    From above of crop happy ethnic young female florist in apron smiling and cutting wrapping paper while arranging elegant bouquet of fresh assorted colorful flowers
    Lynx spider sitting at edge of green leaf. — Stock Photo
    Lynx spider sitting at edge of green leaf.
    Festive stylish decorative Christmas bouquet with twigs of eucalyptus and bright red branches with berries placed on wooden table in room — Stock Photo
    Festive stylish decorative Christmas bouquet with twigs of eucalyptus and bright red branches with berries placed on wooden table in room
    Dry trees with sticking roots in mountain valley in sunny day — Stock Photo
    Dry trees with sticking roots in mountain valley in sunny day
    Top view of tasty fresh fig pieces with juicy pulp near aromatic thyme sprigs on crumpled surface — Stock Photo
    Top view of tasty fresh fig pieces with juicy pulp near aromatic thyme sprigs on crumpled surface
    Female junior high teacher helping student at computer in computer lab — Stock Photo
    Female junior high teacher helping student at computer in computer lab
    Palm leaves, Flat lay — Stock Photo
    Palm leaves, Flat lay
    Tasty appetizing ripe cherries on rusty tabletop — Stock Photo
    Tasty appetizing ripe cherries on rusty tabletop
    Woman with secateurs working in garden — Stock Photo
    Woman with secateurs working in garden
    Miniature snail on a plant, Indonesia — Stock Photo
    Miniature snail on a plant, Indonesia
    Enthusiastic computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Enthusiastic computer programmers testing virtual reality simulator glasses in office
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    Close-up view of a toadstool in moonlight — Stock Photo
    Close-up view of a toadstool in moonlight
    Green and red haworthia plant with leaves and white dots in dark place — Stock Photo
    Green and red haworthia plant with leaves and white dots in dark place
    Close-up of a damselfly hiding behind a plant stem, Indonesia — Stock Photo
    Close-up of a damselfly hiding behind a plant stem, Indonesia
    Water pouring into glassware with inscription i miss you placed near skein of thread and blooming carnation — Stock Photo
    Water pouring into glassware with inscription i miss you placed near skein of thread and blooming carnation
    Little boy looking into microscope at home — Stock Photo
    Little boy looking into microscope at home
    Student in wheelchair beside furnace fuel flow controls in HVAC classroom — Stock Photo
    Student in wheelchair beside furnace fuel flow controls in HVAC classroom
    Illustration of blue stem cell on plain background. — Stock Photo
    Illustration of blue stem cell on plain background.
    Junior high students using computers in computer lab — Stock Photo
    Junior high students using computers in computer lab
    Closeup view of two empty Champagne glasses — Stock Photo
    Closeup view of two empty Champagne glasses
    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
    Woman checking plant in the garden — Stock Photo
    Woman checking plant in the garden
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom
    Dragonfly (Odonata), Bigodi Wetland Sanctuary, Bwindi Impenetrable Forest; Western Region, Uganda — Stock Photo
    Dragonfly (Odonata), Bigodi Wetland Sanctuary, Bwindi Impenetrable Forest; Western Region, Uganda
    Portrait smiling, confident girl student next to DNA model in classroom — Stock Photo
    Portrait smiling, confident girl student next to DNA model in classroom
    Close-up of a bug on a plant, Indonesia — Stock Photo
    Close-up of a bug on a plant, Indonesia
    Girl students assembling computer in classroom — Stock Photo
    Girl students assembling computer in classroom
    Brown and white eggs in glass with stem — Stock Photo
    Brown and white eggs in glass with stem
    From below view of high green trees growing in dark forest — Stock Photo
    From below view of high green trees growing in dark forest
    Orange knee sawfly sitting on plant stem. — Stock Photo
    Orange knee sawfly sitting on plant stem.
    Scientist pipetting sample into growth medium in multiwell plate. — Stock Photo
    Scientist pipetting sample into growth medium in multiwell plate.
    Dandelion seeds blowing in wind at summer day — Stock Photo
    Dandelion seeds blowing in wind at summer day
    Kameyama bamboo forest; Kyoto, Kansai, Japan — Stock Photo
    Kameyama bamboo forest; Kyoto, Kansai, Japan
    Palm leaves in warm sunset light — Stock Photo
    Palm leaves in warm sunset light
    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
    Computer programmers working in open plan office — Stock Photo
    Computer programmers working in open plan office
    Salt farmer splashing water on the sand, bali, indonesia — Stock Photo
    Salt farmer splashing water on the sand, bali, indonesia
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree. — Stock Photo
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree.
    Beautiful blooming yellow wildflowers and sunset — Stock Photo
    Beautiful blooming yellow wildflowers and sunset
    Full frame shot of backlit green palm leaf — Stock Photo
    Full frame shot of backlit green palm leaf
    Fresh fragrant stems of narrow leaved black peppermint tree and rosemary placed on metal buckets with Loropetalum plant leaves in flower market — Stock Photo
    Fresh fragrant stems of narrow leaved black peppermint tree and rosemary placed on metal buckets with Loropetalum plant leaves in flower market
    Illustration of pink stem cell on black background. — Stock Photo
    Illustration of pink stem cell on black background.
    Late snowfall on May's star hyacinths — Stock Photo
    Late snowfall on May's star hyacinths
    Rustic wooden box with glass vases and plants — Stock Photo
    Rustic wooden box with glass vases and plants
    A pair of adult bald eagles sitting on a bare branch together — Stock Photo
    A pair of adult bald eagles sitting on a bare branch together
    Female teacher and students programming and assembling robotics in classroom — Stock Photo
    Female teacher and students programming and assembling robotics in classroom
    Unripe and ripe cherry tomatoes growing on twig of plant in agricultural farm in rural area — Stock Photo
    Unripe and ripe cherry tomatoes growing on twig of plant in agricultural farm in rural area
    Fresh vegetables in the market — Stock Photo
    Fresh vegetables in the market
    Two robberflies mating, Indonesia — Stock Photo
    Two robberflies mating, Indonesia
    Top view of heap of whole small green apples with leaves in basket on wooden surface — Stock Photo
    Top view of heap of whole small green apples with leaves in basket on wooden surface
    Male teacher helping students assembling robotics in classroom — Stock Photo
    Male teacher helping students assembling robotics in classroom
    Extreme close-up of a swiss chard leaf with red veins and water droplets; Calgary, Alberta, Canada — Stock Photo
    Extreme close-up of a swiss chard leaf with red veins and water droplets; Calgary, Alberta, Canada
    Dry trees with sticking roots in mountain valley in sunny day — Stock Photo
    Dry trees with sticking roots in mountain valley in sunny day
    Portrait smiling, confident girl student programming at computer in classroom — Stock Photo
    Portrait smiling, confident girl student programming at computer in classroom
    Computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in office
    Smiling boy wearing goggles and lab coat in laboratory classroom — Stock Photo
    Smiling boy wearing goggles and lab coat in laboratory classroom