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    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
    Young pine tree stem — Stock Photo
    Young pine tree stem
    Female cell biologist examining flask containing stem cells cultivated in red growth medium. — Stock Photo
    Female cell biologist examining flask containing stem cells cultivated in red growth medium.
    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
    Red stemmed baby chard — Stock Photo
    Red stemmed baby chard
    Medium tray with cells and DNA autoradiogram for scientific research. — Stock Photo
    Medium tray with cells and DNA autoradiogram for scientific research.
    A discarded face mask on the ground — Stock Photo
    A discarded face mask on the ground
    Close-up of female florist arranging flowers in a bottle at her flower shop — Stock Photo
    Close-up of female florist arranging flowers in a bottle at her flower shop
    Digital illustration of stem cell on blue background. — Stock Photo
    Digital illustration of stem cell on blue background.
    Young Asian woman cutting rose stem with secateurs — Stock Photo
    Young Asian woman cutting rose stem with secateurs
    Science teacher assembling molecule model in laboratory classroom — Stock Photo
    Science teacher assembling molecule model in laboratory classroom
    Field harvesting on the fields — Stock Photo
    Field harvesting on the fields
    Crop anonymous children at table with green seedling growing in carton cup with soil in house — Stock Photo
    Crop anonymous children at table with green seedling growing in carton cup with soil in house
    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
    Focused boy student assembling computer in classroom — Stock Photo
    Focused boy student assembling computer in classroom
    Female teacher and students examining DNA model in classroom — Stock Photo
    Female teacher and students examining DNA model in classroom
    Fresh tangerine with stem and leaves on dark background — Stock Photo
    Fresh tangerine with stem and leaves on dark background
    Millettia stem in tea strainer — Stock Photo
    Millettia stem in tea strainer
    Top view of raw cut Boletus edulis mushrooms on wooden chopping board with garlic and parsley in light kitchen during cooking process — Stock Photo
    Top view of raw cut Boletus edulis mushrooms on wooden chopping board with garlic and parsley in light kitchen during cooking process
    Orange Cocktail in Stem Glass — Stock Photo
    Orange Cocktail in Stem Glass
    Junior high students using computers in computer lab — Stock Photo
    Junior high students using computers in computer lab
    Different types of red and purple cabbage on a white background, healthy food, top view — Stock Photo
    Different types of red and purple cabbage on a white background, healthy food, top view
    Leaves And New Growth — Stock Photo
    Leaves And New Growth
    Spring flowers still life on wooden — Stock Photo
    Spring flowers still life on wooden
    Close Look At Anatomy Of Leaf — Stock Photo
    Close Look At Anatomy Of Leaf
    Students soldering circuit board in classroom — Stock Photo
    Students soldering circuit board in classroom
    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
    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)
    Close-up of bee fly hanging on wildflower stem. — Stock Photo
    Close-up of bee fly hanging on wildflower stem.
    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
    Snail crawling up plant — Stock Photo
    Snail crawling up plant
    Branch of spruce with thin needles with melting snow in forest in winter day — Stock Photo
    Branch of spruce with thin needles with melting snow in forest in winter day
    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
    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
    Close up of a tree in front of a house. — Stock Photo
    Close up of a tree in front of a house.
    Artichoke flower head — Stock Photo
    Artichoke flower head
    Human embryonic stem cell on pin tip, conceptual digital artwork. — Stock Photo
    Human embryonic stem cell on pin tip, conceptual digital artwork.
    Students programming at computer in classroom — Stock Photo
    Students programming at computer in classroom
    Pieces of fresh green Aloe Vera in row on white background — Stock Photo
    Pieces of fresh green Aloe Vera in row on white background
    Biotechnology engineer inspecting cell culture flask. — Stock Photo
    Biotechnology engineer inspecting cell culture flask.
    Crop unrecognizable ethnic female touching blossoming sunflower with pleasant aroma and gentle petals in countryside — Stock Photo
    Crop unrecognizable ethnic female touching blossoming sunflower with pleasant aroma and gentle petals in countryside
    Human skeleton with skull and ribbed bones near growing plant and white wall in room — Stock Photo
    Human skeleton with skull and ribbed bones near growing plant and white wall in room
    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
    Flower of sea holly plant on white background. — Stock Photo
    Flower of sea holly plant on white background.
    Instructor demonstrating air conditioner high pressure line to student in wheelchair in HVAC classroom — Stock Photo
    Instructor demonstrating air conditioner high pressure line to student in wheelchair in HVAC classroom
    Top view of Crassula ovata succulent plant placed in pot on wooden table in light place — Stock Photo
    Top view of Crassula ovata succulent plant placed in pot on wooden table in light place
    Crop unrecognizable ethnic female touching blossoming sunflower with pleasant aroma and gentle petals in countryside — Stock Photo
    Crop unrecognizable ethnic female touching blossoming sunflower with pleasant aroma and gentle petals in countryside
    Close-up of land snail on wild plant stem. — Stock Photo
    Close-up of land snail on wild plant stem.
    Red winterberry branches on a tray with ribbon and scissors — Stock Photo
    Red winterberry branches on a tray with ribbon and scissors
    Stem cell research — Stock Photo
    Stem cell research
    Computer programmers programming virtual reality simulator glasses at computer in office — Stock Photo
    Computer programmers programming virtual reality simulator glasses at computer in office
    Boy working on science experiment with microscope — Stock Photo
    Boy working on science experiment with microscope
    Human cell, computer illustration — Stock Photo
    Human cell, computer illustration
    Pineapple and coconut sorbet with fresh pineapple pieces served in stem glasses — Stock Photo
    Pineapple and coconut sorbet with fresh pineapple pieces served in stem glasses
    Computer programmers programming virtual reality simulator glasses at computer in office — Stock Photo
    Computer programmers programming virtual reality simulator glasses at computer in office
    Scenic view of coniferous tree branch with curved stems and green needles growing in woods — Stock Photo
    Scenic view of coniferous tree branch with curved stems and green needles growing in woods
    Mid section of female florist cutting flower stem with scissors — Stock Photo
    Mid section of female florist cutting flower stem with scissors
    Female hands making easter decoration — Stock Photo
    Female hands making easter decoration
    A bundle of multi-coloured chard — Stock Photo
    A bundle of multi-coloured chard
    Digital illustration of human cells on blue background. — Stock Photo
    Digital illustration of human cells on blue background.