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    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Section through a lily stem — Stock Photo
    Section through a lily stem
    Section of a flower bud — Stock Photo
    Section of a flower bud
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing. — Stock Photo
    Close-up of hands of scientist placing slide with human sample under light microscope for medical testing.
    High power light micrograph (LM) of a section through the gills of a mushroom, Agaricus sp. (formerly Psalliota sp.). — Stock Photo
    High power light micrograph (LM) of a section through the gills of a mushroom, Agaricus sp. (formerly Psalliota sp.).
    Female scientist viewing tissue sample under microscope. — Stock Photo
    Female scientist viewing tissue sample under microscope.
    Scientist examining cultured cells under microscope. — Stock Photo
    Scientist examining cultured cells under microscope.
    Retina. Light micrograph of a section through the retina showing its 10 layers. — Stock Photo
    Retina. Light micrograph of a section through the retina showing its 10 layers.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Lime tree stem — Stock Photo
    Lime tree stem
    Light microscope objective lenses in laboratory. — Stock Photo
    Light microscope objective lenses in laboratory.
    Scientist viewing sample on glass slide under light microscope. — Stock Photo
    Scientist viewing sample on glass slide under light microscope.
    Plant seedling in soil in Petri dish under light microscope. — Stock Photo
    Plant seedling in soil in Petri dish under light microscope.
    Light micrograph of a section through skin with a neurofibroma tumour (pink, across bottom). — Stock Photo
    Light micrograph of a section through skin with a neurofibroma tumour (pink, across bottom).
    Still life of laboratory bench with microscope and various scientific equipment. — Stock Photo
    Still life of laboratory bench with microscope and various scientific equipment.
    Mature scientist using light microscope in laboratory. — Stock Photo
    Mature scientist using light microscope in laboratory.
    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    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.
    Close-up of hands of scientist pipetting sample from culture in Petri dish. — Stock Photo
    Close-up of hands of scientist pipetting sample from culture in Petri dish.
    Lily flower anther — Stock Photo
    Lily flower anther
    Researchers handling stem cell cultures in laboratory while drug research. — Stock Photo
    Researchers handling stem cell cultures in laboratory while drug research.
    Large thrombus formation — Stock Photo
    Large thrombus formation
    Section through a grape stem — Stock Photo
    Section through a grape stem
    Examining cultured cells under microscope, close-up. — Stock Photo
    Examining cultured cells under microscope, close-up.
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Omentum fold of peritoneal membrane — Stock Photo
    Omentum fold of peritoneal membrane
    Young female scientist viewing microscope during research. — Stock Photo
    Young female scientist viewing microscope during research.
    Fallopian tube cellular structure — Stock Photo
    Fallopian tube cellular structure
    Section of a flower bud — Stock Photo
    Section of a flower bud
    Young pine tree stem — Stock Photo
    Young pine tree stem
    Close-up of hands of scientist taking sample from culture in Petri dish. — Stock Photo
    Close-up of hands of scientist taking sample from culture in Petri dish.
    Hands of scientist researching sample on microscope slide under light microscope. — Stock Photo
    Hands of scientist researching sample on microscope slide under light microscope.
    Close-up of hands of scientist examining sample from culture in Petri dish. — Stock Photo
    Close-up of hands of scientist examining sample from culture in Petri dish.
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Tongue surface, light micrograph and computer illustration. — Stock Photo
    Tongue surface, light micrograph and computer illustration.
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla). — Stock Photo
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla).
    Hair follicles structure — Stock Photo
    Hair follicles structure
    Cross-section through a cotton stem — Stock Photo
    Cross-section through a cotton stem
    Close-up of light microscope stage and lenses. — Stock Photo
    Close-up of light microscope stage and lenses.
    Light microscope on laboratory bench. — Stock Photo
    Light microscope on laboratory bench.
    Hands of scientist researching sample on microscope slide under light microscope. — Stock Photo
    Hands of scientist researching sample on microscope slide under light microscope.
    Female scientist researching sample in petri dish under light microscope. — Stock Photo
    Female scientist researching sample in petri dish under light microscope.
    Hair follicles structure — Stock Photo
    Hair follicles structure
    Kidney with acute nephritis — Stock Photo
    Kidney with acute nephritis
    Section of a flower bud — Stock Photo
    Section of a flower bud
    Midrib of a tea leaf — Stock Photo
    Midrib of a tea leaf
    Light microscope in laboratory, close-up. — Stock Photo
    Light microscope in laboratory, close-up.
    Ovarian cells section — Stock Photo
    Ovarian cells section
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    Section through an osteoid osteoma — Stock Photo
    Section through an osteoid osteoma
    Light micrograph of a section through tissue showing an artery (middle ) and a vein (top left). — Stock Photo
    Light micrograph of a section through tissue showing an artery (middle ) and a vein (top left).
    Light microscope on laboratory bench. — Stock Photo
    Light microscope on laboratory bench.
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Female scientist taking sample from culture in Petri dish. — Stock Photo
    Female scientist taking sample from culture in Petri dish.
    Lime tree stem — Stock Photo
    Lime tree stem
    Close-up of light microscope stage and lenses. — Stock Photo
    Close-up of light microscope stage and lenses.
    Duct is lined with pseudostratified epithelium — Stock Photo
    Duct is lined with pseudostratified epithelium
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    Young pine tree stem — Stock Photo
    Young pine tree stem
    Section through the cerebellum of the brain — Stock Photo
    Section through the cerebellum of the brain