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    Various flowers bouquet on window sill in sunlight. — Stock Photo
    Various flowers bouquet on window sill in sunlight.
    Woman holding secateurs and cutting flower stems — Stock Photo
    Woman holding secateurs and cutting flower stems
    Computer programmers working in open plan office — Stock Photo
    Computer programmers working in open plan office
    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
    Lavandula, X-ray, radiology scan — Stock Photo
    Lavandula, X-ray, radiology scan
    Close-up of cluster fly on dried wildflower stem. — Stock Photo
    Close-up of cluster fly on dried wildflower stem.
    Single cherry tomato close-up view — Stock Photo
    Single cherry tomato close-up view
    Beautiful blooming yellow wildflowers and sunset — Stock Photo
    Beautiful blooming yellow wildflowers and sunset
    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.
    Spiny plant stem in glass bottle — Stock Photo
    Spiny plant stem in glass bottle
    Girl student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student using microscope, conducting scientific experiment in laboratory classroom
    Focused female engineer with screwdriver fixing robotic arm — Stock Photo
    Focused female engineer with screwdriver fixing robotic arm
    Branches and roses in a bowl on a metal stand — Stock Photo
    Branches and roses in a bowl on a metal stand
    Orbital cut showing abducent nerve with ciliary ganglion and oculomotor nerve — Stock Photo
    Orbital cut showing abducent nerve with ciliary ganglion and oculomotor nerve
    Fresh Swiss chard leaves on plate — Stock Photo
    Fresh Swiss chard leaves on plate
    Green caterpillar hanging from red stemmed leaf in Costa Rica — Stock Photo
    Green caterpillar hanging from red stemmed leaf in Costa Rica
    Scientist preparing cells in multiwell plate. — Stock Photo
    Scientist preparing cells in multiwell plate.
    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
    Shiny ripe red cherries on black background — Stock Photo
    Shiny ripe red cherries on black background
    Closeup view of plum with droplets of water — Stock Photo
    Closeup view of plum with droplets of water
    Yellow blooming branches and stems making frame on orange background — Stock Photo
    Yellow blooming branches and stems making frame on orange background
    Windswept sea grass — Stock Photo
    Windswept sea grass
    Student examining control system wiring on furnace in HVAC classroom with one student in wheelchair — Stock Photo
    Student examining control system wiring on furnace in HVAC classroom with one student in wheelchair
    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
    Shiso herb leaves with stem and seeds — Stock Photo
    Shiso herb leaves with stem and seeds
    Red and white chard — Stock Photo
    Red and white chard
    Whiskey Cocktails in Stem Glasses — Stock Photo
    Whiskey Cocktails in Stem Glasses
    Female engineer with digital tablet working in office — Stock Photo
    Female engineer with digital tablet working in office
    Bleeding heart (Dicentra spectabilis), X-ray. — Stock Photo
    Bleeding heart (Dicentra spectabilis), X-ray.
    Medical illustration of the human nervous system and brain — Stock Photo
    Medical illustration of the human nervous system and brain
    Beautiful freshly cut long twigs with green leaves and purple flowers standing in glass jar with water on round wooden table in old shabby room with mirrors — Stock Photo
    Beautiful freshly cut long twigs with green leaves and purple flowers standing in glass jar with water on round wooden table in old shabby room with mirrors
    Students soldering circuit board in classroom — Stock Photo
    Students soldering circuit board in classroom
    Cell-based testing kit in bioengineering laboratory. — Stock Photo
    Cell-based testing kit in bioengineering laboratory.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Swiss Chard at a organic farmer s market — Stock Photo
    Swiss Chard at a organic farmer s market
    Computer programmers programming virtual reality simulator glasses in open plan office — Stock Photo
    Computer programmers programming virtual reality simulator glasses in open plan office
    Cute boy with tablet at home — Stock Photo
    Cute boy with tablet at home
    Close up scientist in rubber gloves placing specimen in centrifuge — Stock Photo
    Close up scientist in rubber gloves placing specimen in centrifuge
    Green spinach foliage with veins and stems in bowl on white surface — Stock Photo
    Green spinach foliage with veins and stems in bowl on white surface
    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
    Close-up of camouflaged caterpillar on dried stem of wild plant. — Stock Photo
    Close-up of camouflaged caterpillar on dried stem of wild plant.
    Closeup of dry grass and wheat spikelets growing in field in countryside during golden hour — Stock Photo
    Closeup of dry grass and wheat spikelets growing in field in countryside during golden hour
    Curious students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Curious students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Eyewear on open textbook against ceramic saucer with cup and dried plant on table in house — Stock Photo
    Eyewear on open textbook against ceramic saucer with cup and dried plant on table in house
    Through glass side view of young female in dress sitting in hothouse with green plants — Stock Photo
    Through glass side view of young female in dress sitting in hothouse with green plants
    Girl students using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students using microscope, conducting scientific experiment in laboratory classroom
    Sommelier evaluating quality of glass of wine — Stock Photo
    Sommelier evaluating quality of glass of wine
    A macro shot of green colorful parakeet feathers, bird anatomy — Stock Photo
    A macro shot of green colorful parakeet feathers, bird anatomy
    Smiling girl students assembling computer in classroom — Stock Photo
    Smiling girl students assembling computer in classroom
    Closeup view of hands plucking thyme leaves from stem — Stock Photo
    Closeup view of hands plucking thyme leaves from stem
    Lemon verbena spring with leaves, close up shot — Stock Photo
    Lemon verbena spring with leaves, close up shot
    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 stem with pink orchids on glass dish — Stock Photo
    Top view of stem with pink orchids on glass dish
    Junior high students using computers in computer lab — Stock Photo
    Junior high students using computers in computer lab
    Close-up view of Swiss Chard Leaf — Stock Photo
    Close-up view of Swiss Chard Leaf
    Five butterflies on a plant stem — Stock Photo
    Five butterflies on a plant stem
    Woman with secateurs working in garden — Stock Photo
    Woman with secateurs working in garden
    Dumpy frog hanging on a plant, closeup view — Stock Photo
    Dumpy frog hanging on a plant, closeup view
    Dense evergreen forest with covered by moss tall redwoods in Big Basin Redwoods State Park in USA — Stock Photo
    Dense evergreen forest with covered by moss tall redwoods in Big Basin Redwoods State Park in USA
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.