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    Trachea lined with ciliated columnar epithelium — Stock Photo
    Trachea lined with ciliated columnar epithelium
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Cross-section through a cotton stem — Stock Photo
    Cross-section through a cotton stem
    Tendon showing the parallel collagen fibres — Stock Photo
    Tendon showing the parallel collagen fibres
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    Scientist viewing sample on glass slide before light microscope. — Stock Photo
    Scientist viewing sample on glass slide before light microscope.
    Section through a thyroid gland — Stock Photo
    Section through a thyroid gland
    Hands of scientist researching sample on microscope slide under light microscope. — Stock Photo
    Hands of scientist researching sample on microscope slide under light microscope.
    Ovarian cells section — Stock Photo
    Ovarian cells section
    Lime tree stem — Stock Photo
    Lime tree stem
    Scientists preparing blood sample for analysis under light microscope. — Stock Photo
    Scientists preparing blood sample for analysis under light microscope.
    Section through the cerebellum of the brain — Stock Photo
    Section through the cerebellum of the brain
    Male hands taking sample from agar plate for microbiology research. — Stock Photo
    Male hands taking sample from agar plate for microbiology research.
    Cell cultures under microscope in laboratory. — Stock Photo
    Cell cultures under microscope in laboratory.
    Scientist checking nanofibre structure under light microscope. — Stock Photo
    Scientist checking nanofibre structure under light microscope.
    Scientists preparing blood sample for analysis under light microscope. — Stock Photo
    Scientists preparing blood sample for analysis under light microscope.
    Fallopian tube cellular structure — Stock Photo
    Fallopian tube cellular structure
    Tendon showing the parallel collagen fibres — Stock Photo
    Tendon showing the parallel collagen fibres
    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).
    Mid rib of an olive leaf — Stock Photo
    Mid rib of an olive leaf
    Schoolboy using light microscope in school laboratory. — Stock Photo
    Schoolboy using light microscope in school laboratory.
    Plant seedling in soil in Petri dish under light microscope. — Stock Photo
    Plant seedling in soil in Petri dish under light microscope.
    Hands of scientist researching sample on microscope slide under light microscope. — Stock Photo
    Hands of scientist researching sample on microscope slide under light microscope.
    Hair follicles structure — Stock Photo
    Hair follicles structure
    Mature scientist using light microscope in laboratory. — Stock Photo
    Mature scientist using light microscope in laboratory.
    Light micrograph of a section through breast tissue showing mastitis (inflammation) of breast. — Stock Photo
    Light micrograph of a section through breast tissue showing mastitis (inflammation) of breast.
    Section through an osteoid osteoma — Stock Photo
    Section through an osteoid osteoma
    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.
    Female scientist viewing tissue sample under microscope. — Stock Photo
    Female scientist viewing tissue sample under microscope.
    Hair follicles of human skin — Stock Photo
    Hair follicles of human skin
    Human oesophagus wall — Stock Photo
    Human oesophagus wall
    Cross-section through a cotton stem — Stock Photo
    Cross-section through a cotton stem
    Examining cultured cells under microscope, close-up. — Stock Photo
    Examining cultured cells under microscope, close-up.
    Schoolboy using light microscope in school laboratory. — Stock Photo
    Schoolboy using light microscope in school laboratory.
    Midrib of a tea leaf — Stock Photo
    Midrib of a tea leaf
    Light micrograph (LM) showing blood supply to muscle fibers. — Stock Photo
    Light micrograph (LM) showing blood supply to muscle fibers.
    Redheaded boy using light microscope for studying on meadow. — Stock Photo
    Redheaded boy using light microscope for studying on meadow.
    Unilocular adipose tissue — Stock Photo
    Unilocular adipose tissue
    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.
    Omentum fold of peritoneal membrane — Stock Photo
    Omentum fold of peritoneal membrane
    Section through a wart — Stock Photo
    Section through a wart
    Close-up of light microscope stage and lenses. — Stock Photo
    Close-up of light microscope stage and lenses.
    Hand of scientist researching sample on microscope slide under light microscope. — Stock Photo
    Hand of scientist researching sample on microscope slide under light microscope.
    Light microscope on laboratory bench. — Stock Photo
    Light microscope on laboratory bench.
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Section through an osteoid osteoma — Stock Photo
    Section through an osteoid osteoma
    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.
    Ginger boy using light microscope on green grass. — Stock Photo
    Ginger boy using light microscope on green grass.
    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.
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light 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.
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Researcher handling stem cell cultures in laboratory during research. — Stock Photo
    Researcher handling stem cell cultures in laboratory during research.
    Scientists holding multiwell plate with chemical solution for analytical testing in laboratory. — Stock Photo
    Scientists holding multiwell plate with chemical solution for analytical testing in laboratory.
    Male hand opening agar plate for microbiology research. — Stock Photo
    Male hand opening agar plate for microbiology research.
    Light micrograph of blood cells (mainly B cells, dark purple) in the liver of a patient with lymphocytic leukaemia. — Stock Photo
    Light micrograph of blood cells (mainly B cells, dark purple) in the liver of a patient with lymphocytic leukaemia.
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    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.
    Developing pig eye — Stock Photo
    Developing pig eye
    Female scientist researching sample in petri dish under light microscope. — Stock Photo
    Female scientist researching sample in petri dish under light microscope.