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    Scientists preparing blood sample for analysis under light microscope. — Stock Photo
    Scientists preparing blood sample for analysis under light microscope.
    Researcher handling stem cell cultures in laboratory during research. — Stock Photo
    Researcher handling stem cell cultures in laboratory during research.
    Scientist pipetting sample into growth medium in multiwell plate. — Stock Photo
    Scientist pipetting sample into growth medium in multiwell plate.
    Maize root. Light micrograph (LM) of section through root of maize plant (Zea mays) showing typical monocot arrangement of vascular bundles. central vascular cylinder is comprised of central cluster of parenchyma cells — Stock Photo
    Maize root. Light micrograph (LM) of section through root of maize plant (Zea mays) showing typical monocot arrangement of vascular bundles. central vascular cylinder is comprised of central cluster of parenchyma cells
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Portrait of a Wallace's flying frog on a physalis plant, Indonesia — Stock Photo
    Portrait of a Wallace's flying frog on a physalis plant, Indonesia
    Rustic flower stems in ceramic vase — Stock Photo
    Rustic flower stems in ceramic vase
    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
    Male engineer programming robotics, working at laptop in office — Stock Photo
    Male engineer programming robotics, working at laptop in office
    Male teacher calling on students in classroom — Stock Photo
    Male teacher calling on students in classroom
    Close-up view of flower against blurred background — Stock Photo
    Close-up view of flower against blurred background
    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
    Curious girl students conducting scientific experiment in laboratory classroom — Stock Photo
    Curious girl students conducting scientific experiment in laboratory classroom
    Woody stem section. Coloured scanning electron micrograph (SEM) of a transverse section through the stem of a woody plant. The majority of tissue seen here is secondary xylem (dark brown) — Stock Photo
    Woody stem section. Coloured scanning electron micrograph (SEM) of a transverse section through the stem of a woody plant. The majority of tissue seen here is secondary xylem (dark brown)
    Slim woman wearing shorts and top and standing in high field grass and touching stem tenderly — Stock Photo
    Slim woman wearing shorts and top and standing in high field grass and touching stem tenderly
    Sorriso Cocktail in Glass — Stock Photo
    Sorriso Cocktail in Glass
    Frog hopper and parasitic red mite nymphs on plant stem. — Stock Photo
    Frog hopper and parasitic red mite nymphs on plant stem.
    Butterfly and snail on a flower, Indonesia — Stock Photo
    Butterfly and snail on a flower, Indonesia
    Digital illustration of human cells on blue background. — Stock Photo
    Digital illustration of human cells on blue background.
    Spring buttercup with broken — Stock Photo
    Spring buttercup with broken
    Close up scientist holding specimen tray — Stock Photo
    Close up scientist holding specimen tray
    Students programming and testing robotics in classroom — Stock Photo
    Students programming and testing robotics in classroom
    Japanese honeysuckle tea — Stock Photo
    Japanese honeysuckle tea
    New Seedling in ground against green background — Stock Photo
    New Seedling in ground against green background
    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
    Fresh longans on stem — Stock Photo
    Fresh longans on stem
    Close up of Empty wine glasses on the table — Stock Photo
    Close up of Empty wine glasses on the table
    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
    Female scientist holding tray for stem cell research. — Stock Photo
    Female scientist holding tray for stem cell research.
    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
    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
    Back view full body of anonymous female with raised hand carrying wicker basket between blooming trees in garden — Stock Photo
    Back view full body of anonymous female with raised hand carrying wicker basket between blooming trees in garden
    Leaf hopper sitting on green fresh stem. — Stock Photo
    Leaf hopper sitting on green fresh stem.
    Top view of row of green and ripe cherry tomatoes showing ripening stage on white gauze — Stock Photo
    Top view of row of green and ripe cherry tomatoes showing ripening stage on white gauze
    Student examining electrical control system on furnace with professor in HVAC classroom one student in wheelchair — Stock Photo
    Student examining electrical control system on furnace with professor in HVAC classroom one student in wheelchair
    Dreamy unrecognizable redhead female in dress standing near glass windows of glasshouse with lush plants — Stock Photo
    Dreamy unrecognizable redhead female in dress standing near glass windows of glasshouse with lush plants
    High angle of lichen on tree branch among green branches in abundant forest — Stock Photo
    High angle of lichen on tree branch among green branches in abundant forest
    Student in wheelchair beside furnace fuel flow controls in HVAC classroom — Stock Photo
    Student in wheelchair beside furnace fuel flow controls in HVAC classroom
    Junior high students and teachers using computers in computer lab — Stock Photo
    Junior high students and teachers using computers in computer lab
    Girl student conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student conducting scientific experiment in laboratory classroom
    Monarch Butterfly Caterpillar (Danaus Plexippus) On Leaf, Shirley Richardson Butterfly Garden; Winnipeg, Manitoba, Canada — Stock Photo
    Monarch Butterfly Caterpillar (Danaus Plexippus) On Leaf, Shirley Richardson Butterfly Garden; Winnipeg, Manitoba, Canada
    Boy working on science experiment with microscope — Stock Photo
    Boy working on science experiment with microscope
    From above delicate green thin plant on body of crop unrecognizable person on sunny day — Stock Photo
    From above delicate green thin plant on body of crop unrecognizable person on sunny day
    Idas blue butterfly sitting on dried stem. — Stock Photo
    Idas blue butterfly sitting on dried stem.
    Focused girl students soldering circuit boards in classroom — Stock Photo
    Focused girl students soldering circuit boards in classroom
    Exotic hummingbird sitting on twig on blurred background — Stock Photo
    Exotic hummingbird sitting on twig on blurred background
    Back view thoughtful bearded male with naked torso holding small twig of oak tree branch against white wall — Stock Photo
    Back view thoughtful bearded male with naked torso holding small twig of oak tree branch against white wall
    Colored scanning electron micrograph of stem cell-derived motor neuron cell. — Stock Photo
    Colored scanning electron micrograph of stem cell-derived motor neuron cell.
    Close up view of delicious food — Stock Photo
    Close up view of delicious food
    Fresh organic purple cabbage on wood background. — Stock Photo
    Fresh organic purple cabbage on wood background.
    Cup, telephone and bouqette of may lily — Stock Photo
    Cup, telephone and bouqette of may lily
    Dandelion seeds blowing in wind at summer day — Stock Photo
    Dandelion seeds blowing in wind at summer day
    Cropped image of female florist trimming flower stems at her flower shop — Stock Photo
    Cropped image of female florist trimming flower stems at her flower shop
    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
    Overhead View of Student Working at Table on School Science Project — Stock Photo
    Overhead View of Student Working at Table on School Science Project
    Butterfly and snail on a flower, Indonesia — Stock Photo
    Butterfly and snail on a flower, Indonesia
    Hedge nettle leaves (Stachys sp.), X-ray. — Stock Photo
    Hedge nettle leaves (Stachys sp.), X-ray.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Brainstem and cerebellum structures — Stock Photo
    Brainstem and cerebellum structures
    Branches and roses in a bowl on a metal stand — Stock Photo
    Branches and roses in a bowl on a metal stand