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    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.
    Male teacher and students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Focused boy students using digital tablet and microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Focused boy students using digital tablet and microscope, conducting scientific experiment in laboratory classroom
    Top view of raw royal champignons and stems of green asparagus on parchment prepared for cooking healthy dinner — Stock Photo
    Top view of raw royal champignons and stems of green asparagus on parchment prepared for cooking healthy dinner
    Male teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and students conducting scientific experiment in laboratory classroom
    Rustic flower stems in ceramic vase — Stock Photo
    Rustic flower stems in ceramic vase
    From above of baking tray with various whole unpeeled carrots with stalks on brown background — Stock Photo
    From above of baking tray with various whole unpeeled carrots with stalks on brown background
    Female teacher and girl students using microscope and laptop, conducting scientific experiment in laboratory classroom — Stock Photo
    Female teacher and girl students using microscope and laptop, conducting scientific experiment in laboratory classroom
    A bunch of green chard on background. Vegan organic diet concept — Stock Photo
    A bunch of green chard on background. Vegan organic diet concept
    Portrait smiling, confident girl student next to DNA model in classroom — Stock Photo
    Portrait smiling, confident girl student next to DNA model in classroom
    Fresh vegetables in the market — Stock Photo
    Fresh vegetables in the market
    Closeup of fern stems in forest background — Stock Photo
    Closeup of fern stems in forest background
    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
    Closeup view of Glass vases with eucalyptus — Stock Photo
    Closeup view of Glass vases with eucalyptus
    Eager, smiling students raising hands in science laboratory classroom — Stock Photo
    Eager, smiling students raising hands in science laboratory classroom
    Central nervous system — Stock Photo
    Central nervous system
    Top view of Crassula ovata succulent plant placed in pot on wooden table in light place — Stock Photo
    Top view of Crassula ovata succulent plant placed in pot on wooden table in light place
    Rustic box with glass vases and plants — Stock Photo
    Rustic box with glass vases and plants
    Bigleaf maple leaf (Acer macrophyllum) in autumn, in small tree branch — Stock Photo
    Bigleaf maple leaf (Acer macrophyllum) in autumn, in small tree branch
    Ice Cream Sundae with Berry Sauce — Stock Photo
    Ice Cream Sundae with Berry Sauce
    Lemon with stem and leaves — Stock Photo
    Lemon with stem and leaves
    Student who had Spinal Meningitis in a science lab — Stock Photo
    Student who had Spinal Meningitis in a science lab
    Back view anonymous shirtless male sitting in dark room near tender thin plant twig with withering leaves — Stock Photo
    Back view anonymous shirtless male sitting in dark room near tender thin plant twig with withering leaves
    Focused boy student assembling computer in classroom — Stock Photo
    Focused boy student assembling computer in classroom
    Male teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and students conducting scientific experiment in laboratory classroom
    Iceland, Sudurnes, Port of Reykjanesbaer. Fishing vessels in the hold dries. — Stock Photo
    Iceland, Sudurnes, Port of Reykjanesbaer. Fishing vessels in the hold dries.
    Bouquet of fresh flowers including white lilies eustoma and aster in glass vase at sunshine — Stock Photo
    Bouquet of fresh flowers including white lilies eustoma and aster in glass vase at sunshine
    Orange Juice Pouring — Stock Photo
    Orange Juice Pouring
    Close-up of ballet shoes and roses on stage — Stock Photo
    Close-up of ballet shoes and roses on stage
    From above minimalistic still life composition with green cactus stems placed on round tortilla chip on yellow background — Stock Photo
    From above minimalistic still life composition with green cactus stems placed on round tortilla chip on yellow background
    Computer programmers testing virtual reality simulator glasses in open plan office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in open plan office
    Small unripe cherry tomatoes growing on twig of plant in agricultural farm in rural area — Stock Photo
    Small unripe cherry tomatoes growing on twig of plant in agricultural farm in rural area
    Junior high students using computers in computer lab — Stock Photo
    Junior high students using computers in computer lab
    Miniature snail on a plant, Indonesia — Stock Photo
    Miniature snail on a plant, Indonesia
    Tall coniferous trees with lichen on trunks growing in dense woodland on cold weather — Stock Photo
    Tall coniferous trees with lichen on trunks growing in dense woodland on cold weather
    Thistle bud weevil sitting on common thistle stem. — Stock Photo
    Thistle bud weevil sitting on common thistle stem.
    Smiling male science teacher helping girl students conducting scientific experiment at microscope in laboratory — Stock Photo
    Smiling male science teacher helping girl students conducting scientific experiment at microscope in laboratory
    Butterfly and snail on a flower, Indonesia — Stock Photo
    Butterfly and snail on a flower, Indonesia
    Instructor discussing air conditioner recharging with student in wheelchair in HVAC classroom — Stock Photo
    Instructor discussing air conditioner recharging with student in wheelchair in HVAC classroom
    Close up of fern leaf patterns — Stock Photo
    Close up of fern leaf patterns
    Stem of green asparagus on fork — Stock Photo
    Stem of green asparagus on fork
    Poppy Bloom Detail on White Background — Stock Photo
    Poppy Bloom Detail on White Background
    Close-up of a bug on a plant, Indonesia — Stock Photo
    Close-up of a bug on a plant, Indonesia
    Bundles of bright cherry tomatoes on thin stems growing on farmland plantation in summer — Stock Photo
    Bundles of bright cherry tomatoes on thin stems growing on farmland plantation in summer
    Flower of Scabiosa plant on white background. — Stock Photo
    Flower of Scabiosa plant on white background.
    Woman with secateurs working in garden — Stock Photo
    Woman with secateurs working in garden
    Willow twigs with silvery catkins, close-up. — Stock Photo
    Willow twigs with silvery catkins, close-up.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Green leaves, flora and foliage on nature background — Stock Photo
    Green leaves, flora and foliage on nature background
    Gnocchi with Broccoli, Broccoli Stem , Basil Pesto and Vegan sausages — Stock Photo
    Gnocchi with Broccoli, Broccoli Stem , Basil Pesto and Vegan sausages
    Colorful illustration of plant with blooming flowers and thin prickly stems on orange background — Stock Photo
    Colorful illustration of plant with blooming flowers and thin prickly stems on orange background
    Male teacher and boy student conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and boy student conducting scientific experiment in laboratory classroom
    Two Javan tree frogs on a plant, Indonesia — Stock Photo
    Two Javan tree frogs on a plant, Indonesia
    Sorriso Cocktail in Glass — Stock Photo
    Sorriso Cocktail in Glass
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    A girl takes pictures on a smartphone of plants, for her blog, which she has grown in her home garden — Stock Photo
    A girl takes pictures on a smartphone of plants, for her blog, which she has grown in her home garden
    Top view of bunch of whole raw carrots with stems and leaves on wooden surface — Stock Photo
    Top view of bunch of whole raw carrots with stems and leaves on wooden surface
    Yellow tulips on dark background — Stock Photo
    Yellow tulips on dark background
    Focused junior high girl student using computer in computer lab — Stock Photo
    Focused junior high girl student using computer in computer lab
    Top view of plants in glass flasks placed on yellow background with various leaves — Stock Photo
    Top view of plants in glass flasks placed on yellow background with various leaves