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    Willow twigs with silvery catkins, close-up. — Stock Photo
    Willow twigs with silvery catkins, close-up.
    Allium flower, X-ray. — Stock Photo
    Allium flower, X-ray.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Red chard and beetroot halves in front of a black background — Stock Photo
    Red chard and beetroot halves in front of a black background
    Light micrograph of shoot meristem. This is the tissue in most plants containing undifferentiated cells. Meristematic cells give rise to various organs of a plant and are responsible for growth. — Stock Photo
    Light micrograph of shoot meristem. This is the tissue in most plants containing undifferentiated cells. Meristematic cells give rise to various organs of a plant and are responsible for growth.
    Man holding up goblet — Stock Photo
    Man holding up goblet
    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
    Boy student examining DNA model in classroom — Stock Photo
    Boy student examining DNA model in classroom
    Surprised, curious students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Surprised, curious students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Scenic view of Agave flower stalk, Sedona, Arizona, America, USA — Stock Photo
    Scenic view of Agave flower stalk, Sedona, Arizona, America, USA
    Top view of bunch of fresh green asparagus placed in bowl on table — Stock Photo
    Top view of bunch of fresh green asparagus placed in bowl on table
    New Seedling in ground against green background — Stock Photo
    New Seedling in ground against green background
    Colored scanning electron micrograph of human mesenchymal stem cell. — Stock Photo
    Colored scanning electron micrograph of human mesenchymal stem cell.
    Male praying mantis eating — Stock Photo
    Male praying mantis eating
    Male junior high teacher helping boy student using computer in computer lab — Stock Photo
    Male junior high teacher helping boy student using computer in computer lab
    Woman working in a large glasshouse — Stock Photo
    Woman working in a large glasshouse
    Scenic view of high bamboo twigs with ribbed surface growing in woods in daylight — Stock Photo
    Scenic view of high bamboo twigs with ribbed surface growing in woods in daylight
    Texture of dry fallen yellow autumn leaf with thin veins and stem against blurred gray background — Stock Photo
    Texture of dry fallen yellow autumn leaf with thin veins and stem against blurred gray background
    Focused junior high girl student using computer in computer lab — Stock Photo
    Focused junior high girl student using computer in computer lab
    Female teacher and students conducting scientific experiment, watching liquid in test tube in laboratory classroom — Stock Photo
    Female teacher and students conducting scientific experiment, watching liquid in test tube in laboratory classroom
    Anatomy of human brain on white background — Stock Photo
    Anatomy of human brain on white background
    Close up scientist in rubber gloves using pipette to fill tray — Stock Photo
    Close up scientist in rubber gloves using pipette to fill tray
    Student with Spinal Meningitis in wheelchair studying acceleration on a frictionless table in laboratory — Stock Photo
    Student with Spinal Meningitis in wheelchair studying acceleration on a frictionless table in laboratory
    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
    Focused junior high girl student using computer in computer lab — Stock Photo
    Focused junior high girl student using computer in computer lab
    Curious boy examining DNA model in classroom — Stock Photo
    Curious boy examining DNA model in classroom
    Easter place setting with eucalyptus stems — Stock Photo
    Easter place setting with eucalyptus stems
    Close-up of black Lypusa maurella moth on dried stem. — Stock Photo
    Close-up of black Lypusa maurella moth on dried stem.
    From above of whole green cherry tomatoes in bowl collected in farm during harvest season — Stock Photo
    From above of whole green cherry tomatoes in bowl collected in farm during harvest season
    Students programming and testing robotics in classroom — Stock Photo
    Students programming and testing robotics in classroom
    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
    Closeup view of Glass vases with eucalyptus — Stock Photo
    Closeup view of Glass vases with eucalyptus
    Focused boy student in goggles soldering circuit board in classroom — Stock Photo
    Focused boy student in goggles soldering circuit board in classroom
    Forkful of Tagliatelle with stem broccoli on rustic surface — Stock Photo
    Forkful of Tagliatelle with stem broccoli on rustic surface
    Young charming brunette woman in cap looking at camera and holding fresh red flower in room — Stock Photo
    Young charming brunette woman in cap looking at camera and holding fresh red flower in room
    Digital illustration of stem cell on blue background. — Stock Photo
    Digital illustration of stem cell on blue background.
    Focused female engineer with screwdriver fixing robotic arm — Stock Photo
    Focused female engineer with screwdriver fixing robotic arm
    Top view of opened pack of butter in composition with cloves of garlic and rosemary stems on wooden cutting board and textile placed on dark table in kitchen in rustic style — Stock Photo
    Top view of opened pack of butter in composition with cloves of garlic and rosemary stems on wooden cutting board and textile placed on dark table in kitchen in rustic style
    Pieces of fresh green Aloe Vera in row on white background — Stock Photo
    Pieces of fresh green Aloe Vera in row on white background
    Digital artwork of round blue cells on plain background. — Stock Photo
    Digital artwork of round blue cells on plain background.
    Computer programmers programming virtual reality simulator glasses in office — Stock Photo
    Computer programmers programming virtual reality simulator glasses in office
    Lavandula, X-ray, radiology scan — Stock Photo
    Lavandula, X-ray, radiology scan
    Student in wheelchair setting up generator experiment while student examines HVAC system — Stock Photo
    Student in wheelchair setting up generator experiment while student examines HVAC system
    Human embryonic stem cells, digital illustration. — Stock Photo
    Human embryonic stem cells, digital illustration.
    Full body of cheerful female carrying wicker basket between blooming trees in garden looking away — Stock Photo
    Full body of cheerful female carrying wicker basket between blooming trees in garden looking away
    Close up of small gray lizard looking out of trunk in the forest — Stock Photo
    Close up of small gray lizard looking out of trunk in the forest
    Chicken Satay and glasses — Stock Photo
    Chicken Satay and glasses
    Bright halloween pumpkins in dark forest — Stock Photo
    Bright halloween pumpkins in dark forest
    Young sensual female in black clothes with blossoming flower looking at camera — Stock Photo
    Young sensual female in black clothes with blossoming flower looking at camera
    Female engineers testing robotic arm in office — Stock Photo
    Female engineers testing robotic arm in office
    Researchers handling stem cell cultures in laboratory while drug research. — Stock Photo
    Researchers handling stem cell cultures in laboratory while drug research.
    Glass of alcoholic drink and ice on white background with purple lily petal — Stock Photo
    Glass of alcoholic drink and ice on white background with purple lily petal
    Focused female engineers examining prototype — Stock Photo
    Focused female engineers examining prototype
    Junior high students using computers and watching teacher at projection screen in classroom — Stock Photo
    Junior high students using computers and watching teacher at projection screen in classroom
    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
    Curious students conducting scientific experiment, examining liquid in beaker in laboratory classroom — Stock Photo
    Curious students conducting scientific experiment, examining liquid in beaker in laboratory classroom
    Row of elegant shiny glasses standing on wooden table in wine cellar with wine bottles on shelves on background — Stock Photo
    Row of elegant shiny glasses standing on wooden table in wine cellar with wine bottles on shelves on background
    Crop unrecognizable person showing blooming yellow flower on thin stalk against shadows in house — Stock Photo
    Crop unrecognizable person showing blooming yellow flower on thin stalk against shadows in house
    Yellow blooming branches and stems making frame on orange background — Stock Photo
    Yellow blooming branches and stems making frame on orange background
    Computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Computer programmers testing virtual reality simulator glasses in office