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    Lime tree stem — Stock Photo
    Lime tree stem
    Texture of dry fallen orange autumn leaf with thin veins and stem against blurred gray background — Stock Photo
    Texture of dry fallen orange autumn leaf with thin veins and stem against blurred gray background
    Focused boy student programming at computer in dark classroom — Stock Photo
    Focused boy student programming at computer in dark classroom
    Red Wine Pouring into a Glass — Stock Photo
    Red Wine Pouring into a Glass
    Human brain anatomy, 3D illustration. Lobes of the brain are colour-coded: frontal lobe (Pink), parietal lobe (blue), occipital lobe (orange) and temporal lobe (yellow). — Stock Photo
    Human brain anatomy, 3D illustration. Lobes of the brain are colour-coded: frontal lobe (Pink), parietal lobe (blue), occipital lobe (orange) and temporal lobe (yellow).
    Instructor training students about air conditioning units in HVAC classroom — Stock Photo
    Instructor training students about air conditioning units in HVAC classroom
    Hand of teacher pointing to molecular structure on projection screen — Stock Photo
    Hand of teacher pointing to molecular structure on projection screen
    Woman with secateurs working in garden — Stock Photo
    Woman with secateurs working in garden
    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
    Top view of zigzag line of green and ripe cherry tomatoes showing ripening stage on white gauze — Stock Photo
    Top view of zigzag line of green and ripe cherry tomatoes showing ripening stage on white gauze
    Female teacher and girl students examining molecular structure in classroom — Stock Photo
    Female teacher and girl students examining molecular structure in classroom
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves
    Student in wheelchair examining furnace fuel flow controls in HVAC classroom — Stock Photo
    Student in wheelchair examining furnace fuel flow controls in HVAC classroom
    Orangutan hanging on tree, closeup view — Stock Photo
    Orangutan hanging on tree, closeup view
    Closeup view of plum with droplets of water — Stock Photo
    Closeup view of plum with droplets of water
    Acoustic guitar and ukulele placed on green grass growing in nature in summer time in daylight — Stock Photo
    Acoustic guitar and ukulele placed on green grass growing in nature in summer time in daylight
    A hummingbird sits on a branch — Stock Photo
    A hummingbird sits on a branch
    Computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in office
    A girl photographs potted plants that she has grown in her home garden — Stock Photo
    A girl photographs potted plants that she has grown in her home garden
    Close up of boy looking through a microscope at a bug — Stock Photo
    Close up of boy looking through a microscope at a bug
    Closeup view of orange Nasturtium flower on white surface — Stock Photo
    Closeup view of orange Nasturtium flower on white surface
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves
    From above view of bunch of garlic on stone surface — Stock Photo
    From above view of bunch of garlic on stone surface
    Laughing computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Laughing computer programmers testing virtual reality simulator glasses in office
    Hands of female researcher using micropipette and tubes. — Stock Photo
    Hands of female researcher using micropipette and tubes.
    Stem cell research — Stock Photo
    Stem cell research
    Engineers working in office — Stock Photo
    Engineers working in office
    Male junior high teacher leading lesson at projection screen in classroom — Stock Photo
    Male junior high teacher leading lesson at projection screen in classroom
    Computer programmers programming virtual reality simulator glasses in office — Stock Photo
    Computer programmers programming virtual reality simulator glasses in office
    Still life of single cabbage leaf with patterned stem and crinkled green edges on textured background — Stock Photo
    Still life of single cabbage leaf with patterned stem and crinkled green edges on textured background
    Close up of a tree in front of a house. — Stock Photo
    Close up of a tree in front of a house.
    Rosemary leaves close-up view — Stock Photo
    Rosemary leaves close-up view
    Engineers with digital tablet programming robotic arm in office — Stock Photo
    Engineers with digital tablet programming robotic arm in office
    From above of festive stylish decorative Christmas bouquet with twigs of eucalyptus and bright red branches with berries placed on wooden table with candles in room — Stock Photo
    From above of festive stylish decorative Christmas bouquet with twigs of eucalyptus and bright red branches with berries placed on wooden table with candles in room
    Fresh chard (seen from above) — Stock Photo
    Fresh chard (seen from above)
    Female florist trimming flower stems at her flower shop — Stock Photo
    Female florist trimming flower stems at her flower shop
    Close-up of a bug on a plant, Indonesia — Stock Photo
    Close-up of a bug on a plant, Indonesia
    Top view full frame composition of bright multicolored dried autumn leaves on black background — Stock Photo
    Top view full frame composition of bright multicolored dried autumn leaves on black background
    A western honeybee pollinates a flower — Stock Photo
    A western honeybee pollinates a flower
    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
    Exotic hummingbird sitting on twig on blurred background — Stock Photo
    Exotic hummingbird sitting on twig on blurred background
    Smiling junior high girl student using computer in computer lab — Stock Photo
    Smiling junior high girl student using computer in computer lab
    Close-up of Butterfly sitting on a plant stem — Stock Photo
    Close-up of Butterfly sitting on a plant stem
    Girl students conducting scientific experiment, examining liquid in beaker in laboratory classroom — Stock Photo
    Girl students conducting scientific experiment, examining liquid in beaker in laboratory classroom
    Close-up of black Lypusa maurella moth on dried stem. — Stock Photo
    Close-up of black Lypusa maurella moth on dried stem.
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves
    Focused junior high girl student using computer in computer lab — Stock Photo
    Focused junior high girl student using computer in computer lab
    Easter eggs in porcelain egg cartons with eucalyptus stems — Stock Photo
    Easter eggs in porcelain egg cartons with eucalyptus stems
    Close up of Glass of red wine with wine tears — Stock Photo
    Close up of Glass of red wine with wine tears
    Lemon with stem and leaves — Stock Photo
    Lemon with stem and leaves
    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.
    Pygmy marmoset holding on green stem in Ecuador, South America — Stock Photo
    Pygmy marmoset holding on green stem in Ecuador, South America
    Palm leaves composition — Stock Photo
    Palm leaves composition
    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
    Cell-based testing kit in bioengineering laboratory. — Stock Photo
    Cell-based testing kit in bioengineering laboratory.
    Biotechnology or biotech, concept of creation, division and cellular development. High organic technology with productive purposes — Stock Photo
    Biotechnology or biotech, concept of creation, division and cellular development. High organic technology with productive purposes
    High angle of plate with bowl and bundle of small decorative berries during festive occasion in restaurant — Stock Photo
    High angle of plate with bowl and bundle of small decorative berries during festive occasion in restaurant
    Human cell, computer illustration — Stock Photo
    Human cell, computer illustration
    Beautiful blooming yellow wildflowers and sunset — Stock Photo
    Beautiful blooming yellow wildflowers and sunset
    Peony flower (Paeonia officinalis), X-ray. — Stock Photo
    Peony flower (Paeonia officinalis), X-ray.