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    Scientist viewing sample on glass slide under light microscope. — Stock Photo
    Scientist viewing sample on glass slide under light microscope.
    Female cell biologist placing flask containing stem cells cultivated in red growth medium under microscope. — Stock Photo
    Female cell biologist placing flask containing stem cells cultivated in red growth medium under microscope.
    Overhead view of Glasses of red and white wine — Stock Photo
    Overhead view of Glasses of red and white wine
    Closeup view of Glass vases with eucalyptus — Stock Photo
    Closeup view of Glass vases with eucalyptus
    Student who had Spinal Meningitis in a science lab on his smart phone — Stock Photo
    Student who had Spinal Meningitis in a science lab on his smart phone
    Two green flying frogs sitting on a plant, closeup view — Stock Photo
    Two green flying frogs sitting on a plant, closeup view
    Female science teacher and students in laboratory classroom — Stock Photo
    Female science teacher and students in laboratory classroom
    Fresh chard (seen from above) — Stock Photo
    Fresh chard (seen from above)
    Teen girl holding dandelion seed head on long stem. — Stock Photo
    Teen girl holding dandelion seed head on long stem.
    Rig Worker On Platform — Stock Photo
    Rig Worker On Platform
    Close-up of caterpillar cocoon attached to thin stem. — Stock Photo
    Close-up of caterpillar cocoon attached to thin stem.
    Five butterflies on a plant stem — Stock Photo
    Five butterflies on a plant stem
    Peony flower (Paeonia officinalis), X-ray. — Stock Photo
    Peony flower (Paeonia officinalis), X-ray.
    Rosemary leaves close-up view — Stock Photo
    Rosemary leaves close-up view
    Boy student programming at computer in dark classroom — Stock Photo
    Boy student programming at computer in dark classroom
    Shovel with soil against eco cups with growing seedlings in plastic container on table — Stock Photo
    Shovel with soil against eco cups with growing seedlings in plastic container on table
    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
    Female researcher using light microscope for examining stem cells in culture jar. — Stock Photo
    Female researcher using light microscope for examining stem cells in culture jar.
    Researchers handling stem cell cultures in laboratory while drug research. — Stock Photo
    Researchers handling stem cell cultures in laboratory while drug research.
    Close-up of Butterfly sitting on a plant stem — Stock Photo
    Close-up of Butterfly sitting on a plant stem
    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
    Close-up of blossoming wildflowers in Purisim Creek Redwoods; California, United States of America — Stock Photo
    Close-up of blossoming wildflowers in Purisim Creek Redwoods; California, United States of America
    Human hand touching leafless branch — Stock Photo
    Human hand touching leafless branch
    Place setting with eucalyptus stems — Stock Photo
    Place setting with eucalyptus stems
    Digital illustration of human cells on blue background. — Stock Photo
    Digital illustration of human cells on blue background.
    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
    Blood orange and Aperol granita — Stock Photo
    Blood orange and Aperol granita
    High angle of indigo milk cap edible mushroom growing on ground covered with dry leaves in autumn forest — Stock Photo
    High angle of indigo milk cap edible mushroom growing on ground covered with dry leaves in autumn forest
    Boy students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Boy students examining liquid in test tube, conducting scientific experiment in laboratory classroom
    Student in wheelchair examining air conditioner high pressure line in HVAC classroom — Stock Photo
    Student in wheelchair examining air conditioner high pressure line in HVAC classroom
    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
    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
    Female standing in lush greenhouse and hiding face behind branch of tree with green foliage — Stock Photo
    Female standing in lush greenhouse and hiding face behind branch of tree with green foliage
    Female florist trimming flower stems at her flower shop — Stock Photo
    Female florist trimming flower stems at her flower shop
    A summer cocktail in a stemmed glass casting a shadow — Stock Photo
    A summer cocktail in a stemmed glass casting a shadow
    Liquid in bottles, test tubes and beakers in science laboratory classroom — Stock Photo
    Liquid in bottles, test tubes and beakers in science laboratory classroom
    Human hand touching leafless branch — Stock Photo
    Human hand touching leafless branch
    Through glass of serene young female in dress standing in hothouse with green plants — Stock Photo
    Through glass of serene young female in dress standing in hothouse with green plants
    Female teacher and students programming and assembling robotics in classroom — Stock Photo
    Female teacher and students programming and assembling robotics in classroom
    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
    Cross-section through a cotton stem — Stock Photo
    Cross-section through a cotton stem
    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
    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
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    Focused female engineers examining prototype — Stock Photo
    Focused female engineers examining prototype
    Medical illustration of the human nervous system and brain — Stock Photo
    Medical illustration of the human nervous system and brain
    Peony flower (Paeonia officinalis), X-ray. — Stock Photo
    Peony flower (Paeonia officinalis), X-ray.
    Back view of young woman in sport clothes holding hand of human near big meadow with red blooms and sunshine in sky — Stock Photo
    Back view of young woman in sport clothes holding hand of human near big meadow with red blooms and sunshine in sky
    Stylish decorative Christmas bouquet with twigs of eucalyptus and bright red branches with berries in daylight — Stock Photo
    Stylish decorative Christmas bouquet with twigs of eucalyptus and bright red branches with berries in daylight
    Focused female engineer planning, using adhesive notes in office — Stock Photo
    Focused female engineer planning, using adhesive notes in office
    Smiling junior high girl student using computer in computer lab — Stock Photo
    Smiling junior high girl student using computer in computer lab
    Still life close up fresh, organic, healthy green leek stems on wood — Stock Photo
    Still life close up fresh, organic, healthy green leek stems on wood
    Stem cell cultures on weighed in laboratory. — Stock Photo
    Stem cell cultures on weighed in laboratory.
    Macro details of a parrot colorful parrot feathers — Stock Photo
    Macro details of a parrot colorful parrot feathers
    Still life of bunch of green garlic on table — Stock Photo
    Still life of bunch of green garlic on table
    Girl students examining liquid in beaker, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students examining liquid in beaker, conducting scientific experiment in laboratory classroom
    Closeup view of green ice plant on white surface — Stock Photo
    Closeup view of green ice plant on white surface
    Close up of fern leaf patterns — Stock Photo
    Close up of fern leaf patterns
    Close up scientist holding specimen tray — Stock Photo
    Close up scientist holding specimen tray
    Bee fly hanging on plant stem. — Stock Photo
    Bee fly hanging on plant stem.