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    Coloured scanning electron micrograph (SEM) of a freeze-fractured Nasturtium stem, showing numerous vascular bundles (such as at upper centre) with an inner xylem (pink) and outer phloem (yellow). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze-fractured Nasturtium stem, showing numerous vascular bundles (such as at upper centre) with an inner xylem (pink) and outer phloem (yellow).
    Digital illustration of human cells on blue background. — Stock Photo
    Digital illustration of human cells on blue background.
    Colored human embryonic stem cells, digital illustration. — Stock Photo
    Colored human embryonic stem cells, digital illustration.
    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).
    A champagne cocktail with strawberries — Stock Photo
    A champagne cocktail with strawberries
    Western sword fern — Stock Photo
    Western sword fern
    Shrimp Cocktail in Glass — Stock Photo
    Shrimp Cocktail in Glass
    Kameyama bamboo forest; Kyoto, Kansai, Japan — Stock Photo
    Kameyama bamboo forest; Kyoto, Kansai, Japan
    Charming female with long wavy hair hiding face behind blooming flowers while standing in countryside in sunny day — Stock Photo
    Charming female with long wavy hair hiding face behind blooming flowers while standing in countryside in sunny day
    Cropped image of bunch of green garlic on table — Stock Photo
    Cropped image of bunch of green garlic on table
    Junior high students and teachers using computers in computer lab — Stock Photo
    Junior high students and teachers using computers in computer lab
    Shiny ripe red cherries on black background — Stock Photo
    Shiny ripe red cherries on black background
    Young homosexual female with green onion stem standing at table with assorted vegetables and tablet at home — Stock Photo
    Young homosexual female with green onion stem standing at table with assorted vegetables and tablet at home
    Orangutan hanging on tree in natural habitat — Stock Photo
    Orangutan hanging on tree in natural habitat
    Top view of fresh raw Boletus edulis with thick stems and cap placed on marble gray background in light room — Stock Photo
    Top view of fresh raw Boletus edulis with thick stems and cap placed on marble gray background in light room
    Crop male hand holding bunch of garlic over table — Stock Photo
    Crop male hand holding bunch of garlic over table
    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
    Male praying mantis eating — Stock Photo
    Male praying mantis eating
    Close up of flowers in garden centre — Stock Photo
    Close up of flowers in garden centre
    Top view of raw cut Boletus edulis mushrooms on rustic wooden chopping board during cooking process — Stock Photo
    Top view of raw cut Boletus edulis mushrooms on rustic wooden chopping board during cooking process
    Girl students conducting scientific experiment, examining liquid in beaker in laboratory classroom — Stock Photo
    Girl students conducting scientific experiment, examining liquid in beaker in laboratory classroom
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow) — Stock Photo
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow)
    Human embryonic stem cells in Petri dish, digital illustration. — Stock Photo
    Human embryonic stem cells in Petri dish, digital illustration.
    Ripe red edible raspberry growing on branch of perennial shrub cultivated in farm in countryside — Stock Photo
    Ripe red edible raspberry growing on branch of perennial shrub cultivated in farm in countryside
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves
    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.
    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
    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
    Lavandula, X-ray, radiology scan — Stock Photo
    Lavandula, X-ray, radiology scan
    Scientist in rubber glove preparing pipette in laboratory — Stock Photo
    Scientist in rubber glove preparing pipette in laboratory
    Focused young ethnic female florist in casual clothes and apron cutting stems of fresh bright flowers with pruning snips in floral shop — Stock Photo
    Focused young ethnic female florist in casual clothes and apron cutting stems of fresh bright flowers with pruning snips in floral shop
    Laughing computer programmers testing virtual reality simulator glasses in office — Stock Photo
    Laughing computer programmers testing virtual reality simulator glasses in office
    Seedling Growing in a Greenhouse, Close-up view — Stock Photo
    Seedling Growing in a Greenhouse, Close-up view
    Green plant on a corner of a table — Stock Photo
    Green plant on a corner of a table
    Lemon on stem with leaves — Stock Photo
    Lemon on stem with leaves
    Acoustic guitar and ukulele placed on green grass growing in nature in summer time in daylight — Stock Photo
    Acoustic guitar and ukulele placed on green grass growing in nature in summer time in daylight
    Javan tree frog on a plant, Indonesia — Stock Photo
    Javan tree frog on a plant, Indonesia
    Beautiful blooming yellow wildflowers and sunset — Stock Photo
    Beautiful blooming yellow wildflowers and sunset
    Snowdrop white flower — Stock Photo
    Snowdrop white flower
    Top view of raw cut Boletus edulis mushrooms on rustic wooden chopping board during cooking process — Stock Photo
    Top view of raw cut Boletus edulis mushrooms on rustic wooden chopping board during cooking process
    Side view of of redhead female standing among tropical palm and plants in glasshouse — Stock Photo
    Side view of of redhead female standing among tropical palm and plants in glasshouse
    Female teacher and curious girl students examining molecular structure in laboratory classroom — Stock Photo
    Female teacher and curious girl students examining molecular structure in laboratory classroom
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory — Stock Photo
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory
    Cold orange juice — Stock Photo
    Cold orange juice
    Stem cell cultures on weighed in laboratory. — Stock Photo
    Stem cell cultures on weighed in laboratory.
    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
    Bowl and bundle of small decorative berries during festive occasion in restaurant — Stock Photo
    Bowl and bundle of small decorative berries during festive occasion in restaurant
    Gnocchi with Broccoli, Broccoli Stem , Basil Pesto and Vegan sausages — Stock Photo
    Gnocchi with Broccoli, Broccoli Stem , Basil Pesto and Vegan sausages
    Ceviche with avocado in a stemmed glass — Stock Photo
    Ceviche with avocado in a stemmed glass
    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
    Easter table setting with Easter eggs in a bird's nest and eucalyptus stems — Stock Photo
    Easter table setting with Easter eggs in a bird's nest and eucalyptus stems
    Still life fresh, organic, healthy carrots with stems in wood crate — Stock Photo
    Still life fresh, organic, healthy carrots with stems in wood crate
    Cute Blonde Girl With French Braids Works on School Papers at Home — Stock Photo
    Cute Blonde Girl With French Braids Works on School Papers at Home
    Junior high girl student using computer in computer lab — Stock Photo
    Junior high girl student using computer in computer lab
    From above of whole green and red cherry tomatoes in bowl collected in farm during harvest season — Stock Photo
    From above of whole green and red cherry tomatoes in bowl collected in farm during harvest season
    Rustic wooden box with glass vases and plants — Stock Photo
    Rustic wooden box with glass vases and plants
    Man carrying glasses of wine in tray — Stock Photo
    Man carrying glasses of wine in tray
    Computer programmers programming virtual reality simulator glasses in office — Stock Photo
    Computer programmers programming virtual reality simulator glasses in office
    Little boy making clay volcano at kitchen table — Stock Photo
    Little boy making clay volcano at kitchen table