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    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)
    Magnified digital illustration of antibody cell. — Stock Photo
    Magnified digital illustration of antibody cell.
    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.
    Strawberry pollen grain — Stock Photo
    Strawberry pollen grain
    Scientists preparing blood sample for analysis under light microscope. — Stock Photo
    Scientists preparing blood sample for analysis under light microscope.
    Adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital — Stock Photo
    Adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain. — Stock Photo
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain.
    Fungal cells revealing sporangium with spores — Stock Photo
    Fungal cells revealing sporangium with spores
    Male biologist working with microscope with colleague in background — Stock Photo
    Male biologist working with microscope with colleague in background
    Young male researcher looking at sample under microscope in laboratory. — Stock Photo
    Young male researcher looking at sample under microscope in laboratory.
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Crystalline lens of the eye — Stock Photo
    Crystalline lens of the eye
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Coloured scanning electron micrograph (SEM) of sensory hair cells in the cochlea of the inner ear. — Stock Photo
    Coloured scanning electron micrograph (SEM) of sensory hair cells in the cochlea of the inner ear.
    Hidradenoma papilliferum, light micrograph (LM) of section of affected vulva. Hidradenoma papilliferumis type of benign cystic papillary growth (lower part of image) that occurs on labia majora of vulva — Stock Photo
    Hidradenoma papilliferum, light micrograph (LM) of section of affected vulva. Hidradenoma papilliferumis type of benign cystic papillary growth (lower part of image) that occurs on labia majora of vulva
    Section through a thyroid gland — Stock Photo
    Section through a thyroid gland
    Attentive female doctor in surgical uniform and sterile mask looking through microscope while operating eye of unrecognizable patient in hospital — Stock Photo
    Attentive female doctor in surgical uniform and sterile mask looking through microscope while operating eye of unrecognizable patient in hospital
    Dense connective tissue, coloured scanning electron micrograph (SEM). — Stock Photo
    Dense connective tissue, coloured scanning electron micrograph (SEM).
    Horse chestnut pollen grain — Stock Photo
    Horse chestnut pollen grain
    Medical researcher examining a new medicine. science student dressed in white lab coat looking through a microscope. — Stock Photo
    Medical researcher examining a new medicine. science student dressed in white lab coat looking through a microscope.
    Back view of unrecognizable focused male veterinarian in uniform watching X ray illustration on desktop computer in laboratory — Stock Photo
    Back view of unrecognizable focused male veterinarian in uniform watching X ray illustration on desktop computer in laboratory
    Helicobacter pylori bacterium — Stock Photo
    Helicobacter pylori bacterium
    Bone cancer cells. Coloured scanning electron micrograph of osteosarcoma cancer cells. Osteosarcoma is an aggressive malignant neoplasm arising from primitive transformed mesenchymal cells — Stock Photo
    Bone cancer cells. Coloured scanning electron micrograph of osteosarcoma cancer cells. Osteosarcoma is an aggressive malignant neoplasm arising from primitive transformed mesenchymal cells
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Scanning electron microscopy of DNA molecules and red and white blood cells. — Stock Photo
    Scanning electron microscopy of DNA molecules and red and white blood cells.
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Intestinal microvilli. Coloured transmission electron micrograph (TEM) of a section through microvilli from the small intestine. These tiny structures (cyan) form a dense brush-like covering on the absorptive surfaces of the cells — Stock Photo
    Intestinal microvilli. Coloured transmission electron micrograph (TEM) of a section through microvilli from the small intestine. These tiny structures (cyan) form a dense brush-like covering on the absorptive surfaces of the cells
    Male engineer using stereo microscope for inspecting manufactured component during quality control process. — Stock Photo
    Male engineer using stereo microscope for inspecting manufactured component during quality control process.
    Red blood cells — Stock Photo
    Red blood cells
    Myelinated nerve fibres — Stock Photo
    Myelinated nerve fibres
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans — Stock Photo
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans
    Gastrotrich eggs. Coloured scanning electron micrograph (SEM) of a Chaetonotus sp. gastrotrich eggs. Gastrotrichs are microscopic, worm-like animals found in both freshwater and marine habitats — Stock Photo
    Gastrotrich eggs. Coloured scanning electron micrograph (SEM) of a Chaetonotus sp. gastrotrich eggs. Gastrotrichs are microscopic, worm-like animals found in both freshwater and marine habitats
    Side view of crop anonymous male medic in uniform and mask using microscope while working in lab — Stock Photo
    Side view of crop anonymous male medic in uniform and mask using microscope while working in lab
    Fractured myelinated nerve fibres — Stock Photo
    Fractured myelinated nerve fibres
    Magnified digital illustration of 4 cell stage embryo. — Stock Photo
    Magnified digital illustration of 4 cell stage embryo.
    Epithelium from a fallopian tube — Stock Photo
    Epithelium from a fallopian tube
    Closeup of magnified part of black and brown ant with glossy belly and legs — Stock Photo
    Closeup of magnified part of black and brown ant with glossy belly and legs
    Light micrograph of a buccal mucosa cell. This cell lines the cheeks and the back of the lips. — Stock Photo
    Light micrograph of a buccal mucosa cell. This cell lines the cheeks and the back of the lips.
    Possible global pandemic. Vaccine study for the Coronavirus virus. — Stock Photo
    Possible global pandemic. Vaccine study for the Coronavirus virus.
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Female college students conducting scientific experiment in science laboratory classroom — Stock Photo
    Female college students conducting scientific experiment in science laboratory classroom
    Closeup view of scientist analyzing bacterial colonies — Stock Photo
    Closeup view of scientist analyzing bacterial colonies
    Colored scanning electron micrograph of osteoblast osteocyte bone cell. — Stock Photo
    Colored scanning electron micrograph of osteoblast osteocyte bone cell.
    Weevil (Sitophilus sp.), coloured scanning electron micrograph (SEM). This weevil is a major agricultural pest. It primarily attacks stored grains and fruits, feeding on them with its often elongated snout, or rostrum — Stock Photo
    Weevil (Sitophilus sp.), coloured scanning electron micrograph (SEM). This weevil is a major agricultural pest. It primarily attacks stored grains and fruits, feeding on them with its often elongated snout, or rostrum
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    In vitro fertilisation, computer illustration — Stock Photo
    In vitro fertilisation, computer illustration
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Male teacher helping girl student at microscope in laboratory classroom — Stock Photo
    Male teacher helping girl student at microscope in laboratory classroom
    Magnified digital illustration of Candida albicans yeast. — Stock Photo
    Magnified digital illustration of Candida albicans yeast.
    Kidney glomeruli. Coloured scanning electron micrograph (SEM) of a resin cast of glomeruli capillaries and the larger blood vessels supplying them with blood — Stock Photo
    Kidney glomeruli. Coloured scanning electron micrograph (SEM) of a resin cast of glomeruli capillaries and the larger blood vessels supplying them with blood
    Skeletal muscle fibres — Stock Photo
    Skeletal muscle fibres
    Close up profile girl student using microscope, conducting scientific experiment — Stock Photo
    Close up profile girl student using microscope, conducting scientific experiment
    Young pine tree stem — Stock Photo
    Young pine tree stem
    Male patient having eye examination — Stock Photo
    Male patient having eye examination
    Stomach surface epithelium, light micrograph (LM). The surface epithelium of the stomach is a simple columnar epithelium formed by tall mucous cells that invaginate to form the gastric pits — Stock Photo
    Stomach surface epithelium, light micrograph (LM). The surface epithelium of the stomach is a simple columnar epithelium formed by tall mucous cells that invaginate to form the gastric pits
    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.).
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom
    Chlamydia bacteria, illustration — Stock Photo
    Chlamydia bacteria, illustration
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Illustration of Nipah viruses binding to receptors on human cells, an initial stage of Nipah infection. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore — Stock Photo
    Illustration of Nipah viruses binding to receptors on human cells, an initial stage of Nipah infection. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore