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    Cross-section through a cotton stem — Stock Photo
    Cross-section through a cotton stem
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    Technician checking stem cell cultures in bioengineering laboratory. — Stock Photo
    Technician checking stem cell cultures in bioengineering laboratory.
    Curious girl examining molecule model in classroom — Stock Photo
    Curious girl examining molecule model in classroom
    Female teacher and students watching scientific experiment chemical reaction in laboratory classroom — Stock Photo
    Female teacher and students watching scientific experiment chemical reaction in laboratory classroom
    Curing green grasshopper sitting on delicate dark red plant leaf on blurred wild nature background — Stock Photo
    Curing green grasshopper sitting on delicate dark red plant leaf on blurred wild nature background
    A bunch of green chard on background. Vegan organic diet concept — Stock Photo
    A bunch of green chard on background. Vegan organic diet concept
    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
    Focused girl student assembling circuit board in classroom — Stock Photo
    Focused girl student assembling circuit board in classroom
    Closeup green tomatoes ripening on branches of plant growing in agricultural field in countryside — Stock Photo
    Closeup green tomatoes ripening on branches of plant growing in agricultural field in countryside
    Campopleginae pupa covered by dew drops on stem. — Stock Photo
    Campopleginae pupa covered by dew drops on stem.
    Black-eyed Susan stems grow side by side in a garden, looking the same as if to be a mirror image; Astoria, Oregon, United States of America — Stock Photo
    Black-eyed Susan stems grow side by side in a garden, looking the same as if to be a mirror image; Astoria, Oregon, United States of America
    Beautiful red flower on black background — Stock Photo
    Beautiful red flower on black background
    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.
    Students examining liquids in test tube rack, conducting scientific experiment in laboratory classroom — Stock Photo
    Students examining liquids in test tube rack, conducting scientific experiment in laboratory classroom
    Frozen blackberries and blueberries with red plant stem — Stock Photo
    Frozen blackberries and blueberries with red plant stem
    Male teacher and students researching at laptop in library — Stock Photo
    Male teacher and students researching at laptop in library
    Coloured scanning electron micrograph (SEM) of a freeze-fractured water lily stem showing numerous vascular bundles (grey) and large intercellular air spaces (holes). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze-fractured water lily stem showing numerous vascular bundles (grey) and large intercellular air spaces (holes).
    Ripe wheat stems in field in summertime — Stock Photo
    Ripe wheat stems in field in summertime
    Woman with secateurs working in garden — Stock Photo
    Woman with secateurs working in garden
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium. — Stock Photo
    Close-up of hand of cell biologist holding flask of stem cells cultivated in red growth medium.
    Two green flying frogs sitting on a plant, closeup view — Stock Photo
    Two green flying frogs sitting on a plant, closeup view
    Light micrograph of a cross section through a grape vine (Vitis sp.) stem. — Stock Photo
    Light micrograph of a cross section through a grape vine (Vitis sp.) stem.
    Ice Cream Sundae with Berry Sauce — Stock Photo
    Ice Cream Sundae with Berry Sauce
    Close-up of a pumpkin and a yellow blossom on the plant ; Erickson, Manitoba, Canada — Stock Photo
    Close-up of a pumpkin and a yellow blossom on the plant ; Erickson, Manitoba, Canada
    Seven spot ladybird sitting on dried stem. — Stock Photo
    Seven spot ladybird sitting on dried stem.
    Dreamy redhead female with long hair opening door of greenhouse with plants looking down — Stock Photo
    Dreamy redhead female with long hair opening door of greenhouse with plants looking down
    Closeup of tween girl looking at bug under microscope — Stock Photo
    Closeup of tween girl looking at bug under microscope
    Student in wheelchair beside furnace fuel flow controls in HVAC classroom — Stock Photo
    Student in wheelchair beside furnace fuel flow controls in HVAC classroom
    Focused girl student programming robotics at laptop in classroom — Stock Photo
    Focused girl student programming robotics at laptop in classroom
    Young pine tree stem — Stock Photo
    Young pine tree stem
    Undifferentiated stem cells — Stock Photo
    Undifferentiated stem cells
    Female scientist in clean suit researching coronavirus vaccine — Stock Photo
    Female scientist in clean suit researching coronavirus vaccine
    Pensive girl student conducting science experiment in classroom laboratory — Stock Photo
    Pensive girl student conducting science experiment in classroom laboratory
    Wild grasses and seedheads — Stock Photo
    Wild grasses and seedheads
    Top view of bowl with fresh cherry tomatoes near rosemary stems and whole onion on wooden table — Stock Photo
    Top view of bowl with fresh cherry tomatoes near rosemary stems and whole onion on wooden table
    Rustic flower stems in ceramic vase — Stock Photo
    Rustic flower stems in ceramic vase
    Small lavender flowers falling on shabby wooden table in dark room — Stock Photo
    Small lavender flowers falling on shabby wooden table in dark room
    Blastocyst hollow ball of cells with fluid, digital illustration. — Stock Photo
    Blastocyst hollow ball of cells with fluid, digital illustration.
    Pygmy marmoset holding on green stem in Ecuador, South America — Stock Photo
    Pygmy marmoset holding on green stem in Ecuador, South America
    Little boy making clay volcano at kitchen table — Stock Photo
    Little boy making clay volcano at kitchen table
    Young charming brunette woman in cap looking at camera — Stock Photo
    Young charming brunette woman in cap looking at camera
    Scientist in clean suit researching coronavirus in laboratory — Stock Photo
    Scientist in clean suit researching coronavirus in laboratory
    Close-up of nursery web spider on squirting cucumber stem. — Stock Photo
    Close-up of nursery web spider on squirting cucumber stem.
    Close up of Glass of red wine with wine tears — Stock Photo
    Close up of Glass of red wine with wine tears
    Thistle bud weevil sitting on plant stem. — Stock Photo
    Thistle bud weevil sitting on plant stem.
    Woman checking plant in the garden — Stock Photo
    Woman checking plant in the garden
    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
    Seedling Growing in a Greenhouse, Close-up view — Stock Photo
    Seedling Growing in a Greenhouse, Close-up view
    Close-up of orange knee sawfly beetle on plant stem. — Stock Photo
    Close-up of orange knee sawfly beetle on plant stem.
    Student demonstrating air conditioner recharging manifold with gauges in HVAC classroom — Stock Photo
    Student demonstrating air conditioner recharging manifold with gauges in HVAC classroom
    Smiling male teacher and students programming robotics at laptop in classroom — Stock Photo
    Smiling male teacher and students programming robotics at laptop in classroom
    Close-up of snail on green stem on white background — Stock Photo
    Close-up of snail on green stem on white background
    Tropical jungle Monstera leaf — Stock Photo
    Tropical jungle Monstera leaf
    Woman checking plant in the garden — Stock Photo
    Woman checking plant in the garden
    Girl students using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students using microscope, conducting scientific experiment in laboratory classroom
    Yellow cherry tomatoes close-up view — Stock Photo
    Yellow cherry tomatoes close-up view
    A little girl in safety goggles measures liquid into a test tube — Stock Photo
    A little girl in safety goggles measures liquid into a test tube
    Male teacher helping girl student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher helping girl student using microscope, conducting scientific experiment in laboratory classroom
    Top view of raw royal champignons and stems of green asparagus on parchment prepared for cooking healthy dinner — Stock Photo
    Top view of raw royal champignons and stems of green asparagus on parchment prepared for cooking healthy dinner