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1489 results

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    Stem cell research — Stock Photo
    Stem cell research
    Stem cell research — Stock Photo
    Stem cell research
    Orbital cut showing abducent nerve with ciliary ganglion and oculomotor nerve — Stock Photo
    Orbital cut showing abducent nerve with ciliary ganglion and oculomotor nerve
    Medical illustration of peripheral nervous system with brain — Stock Photo
    Medical illustration of peripheral nervous system with brain
    Mid section of female florist cutting flower stem with scissors — Stock Photo
    Mid section of female florist cutting flower stem with scissors
    Rig Worker On Platform — Stock Photo
    Rig Worker On Platform
    Stem cell research — Stock Photo
    Stem cell research
    Medical illustration of the human nervous system and brain — Stock Photo
    Medical illustration of the human nervous system and brain
    Coloured scanning electron micrograph (SEM) of a freeze-fractured water lily stem showing numerous vascular bundles (blue) and large intercellular air spaces (holes). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze-fractured water lily stem showing numerous vascular bundles (blue) and large intercellular air spaces (holes).
    Clematis armandii tea — Stock Photo
    Clematis armandii tea
    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).
    Bud growing outdoors — Stock Photo
    Bud growing outdoors
    Cross-section through a cotton stem — Stock Photo
    Cross-section through a cotton stem
    Cross-section through a cotton stem — Stock Photo
    Cross-section through a cotton stem
    Stem cell research — Stock Photo
    Stem cell research
    Close Look At Anatomy Of Leaf — Stock Photo
    Close Look At Anatomy Of Leaf
    Millettia stem in tea strainer — Stock Photo
    Millettia stem in tea strainer
    Close up Of Green Leaf — Stock Photo
    Close up Of Green Leaf
    Teenage girl touching flowers in field — Stock Photo
    Teenage girl touching flowers in field
    Leaves branching off a stem — Stock Photo
    Leaves branching off a stem
    Restaurant table set for guests — Stock Photo
    Restaurant table set for guests
    Restaurant table set for guests — Stock Photo
    Restaurant table set for guests
    Glasses of White Wine with Name Tags — Stock Photo
    Glasses of White Wine with Name Tags
    Section through a peanut stem — Stock Photo
    Section through a peanut stem
    Leaves And New Growth — Stock Photo
    Leaves And New Growth
    Iris stem cellular structure — Stock Photo
    Iris stem cellular structure
    Visual rendering of human brain — Stock Photo
    Visual rendering of human brain
    Active brain visualization — Stock Photo
    Active brain visualization
    Young pine tree stem — Stock Photo
    Young pine tree stem
    Brown and white eggs in glass with stem — Stock Photo
    Brown and white eggs in glass with stem
    Green And Red Grapes — Stock Photo
    Green And Red Grapes
    Section through a lily stem — Stock Photo
    Section through a lily stem
    Young pine tree stem — Stock Photo
    Young pine tree stem
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves
    Lily flower anther — Stock Photo
    Lily flower anther
    Section through a grape stem — Stock Photo
    Section through a grape stem
    Undifferentiated stem cells — Stock Photo
    Undifferentiated stem cells
    Cup, telephone and bouqette of may lily — Stock Photo
    Cup, telephone and bouqette of may lily
    Grapes And Bread in basket — Stock Photo
    Grapes And Bread in basket
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves
    Five butterflies on a plant stem — Stock Photo
    Five butterflies on a plant stem
    Visual rendering of human brain — Stock Photo
    Visual rendering of human brain
    Visual rendering of human brain — Stock Photo
    Visual rendering of human brain
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves
    Dividing stem cells — Stock Photo
    Dividing stem cells
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves
    Chicory stem with leaves — Stock Photo
    Chicory stem with leaves
    Red stemmed chard with roots — Stock Photo
    Red stemmed chard with roots
    Lime tree stem — Stock Photo
    Lime tree stem
    Male praying mantis eating — Stock Photo
    Male praying mantis eating
    Bone marrow stem cells dividing — Stock Photo
    Bone marrow stem cells dividing
    Lime tree stem — Stock Photo
    Lime tree stem
    Whiskey Cocktails in Stem Glasses — Stock Photo
    Whiskey Cocktails in Stem Glasses
    Lime tree stem — Stock Photo
    Lime tree stem
    Ice Cream Sundae with Berry Sauce — Stock Photo
    Ice Cream Sundae with Berry Sauce
    Dragonflies on a plant stem — Stock Photo
    Dragonflies on a plant stem
    Margarita in Blue Stem Glass — Stock Photo
    Margarita in Blue Stem Glass
    Embryonic stem cells — Stock Photo
    Embryonic stem cells
    Central nervous system — Stock Photo
    Central nervous system
    Lime tree stem — Stock Photo
    Lime tree stem