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    Prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Prostate cancer cells, coloured scanning electron micrograph.
    Alveolar macrophage phagocytosis of E. coli — Stock Photo
    Alveolar macrophage phagocytosis of E. coli
    Radiographer taking computed tomography scan of female patient. — Stock Photo
    Radiographer taking computed tomography scan of female patient.
    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).
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Quartz crystals structure — Stock Photo
    Quartz crystals structure
    Male sex cell — Stock Photo
    Male sex cell
    Surface of the foot of a common pollen beetle — Stock Photo
    Surface of the foot of a common pollen beetle
    Human hair, coloured scanning electron micrograph (SEM). Magnification: x550 when printed at 10 centimetres wide. — Stock Photo
    Human hair, coloured scanning electron micrograph (SEM). Magnification: x550 when printed at 10 centimetres wide.
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Vaginal bacteria. Coloured scanning electron micrograph (SEM) of bacteria on the vaginal wall. A healthy vaginal flora protects the body against urogenital infections — Stock Photo
    Vaginal bacteria. Coloured scanning electron micrograph (SEM) of bacteria on the vaginal wall. A healthy vaginal flora protects the body against urogenital infections
    Doctor using x-ray machine to examining patient in hospital — Stock Photo
    Doctor using x-ray machine to examining patient in hospital
    Shell of a radiolarian — Stock Photo
    Shell of a radiolarian
    Coloured scanning electron micrograph of bacteria cultured from used dishcloth. — Stock Photo
    Coloured scanning electron micrograph of bacteria cultured from used dishcloth.
    Doctor using x-ray machine to examining patient in hospital — Stock Photo
    Doctor using x-ray machine to examining patient in hospital
    Coloured scanning electron micrograph (SEM) of Pediculus humanus capitis, human head lice. P. humanus is divided into two subspecies; the head louse P. humanus capitis and the body louse P. humanus corporis — Stock Photo
    Coloured scanning electron micrograph (SEM) of Pediculus humanus capitis, human head lice. P. humanus is divided into two subspecies; the head louse P. humanus capitis and the body louse P. humanus corporis
    House dust mites — Stock Photo
    House dust mites
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    Phytoplankton diatom Coscinodiscus sp — Stock Photo
    Phytoplankton diatom Coscinodiscus sp
    Giardia lamblia, a protozoan (cyst stage) found in water contaminated by animal faeces, coloured scanning electron micrograph (SEM). — Stock Photo
    Giardia lamblia, a protozoan (cyst stage) found in water contaminated by animal faeces, coloured scanning electron micrograph (SEM).
    Triple scan, blue-light 3D scanner in modern industrial facility. — Stock Photo
    Triple scan, blue-light 3D scanner in modern industrial facility.
    Security guard frisking passenger at airport terminal — Stock Photo
    Security guard frisking passenger at airport terminal
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus. — Stock Photo
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus.
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Coloured scanning electron micrograph (SEM) of a tumour cell, showing pseudopodia protrusions (bottom left and right), a prominent feature of actively motile cells. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a tumour cell, showing pseudopodia protrusions (bottom left and right), a prominent feature of actively motile cells.
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Endictya oceanica diatom — Stock Photo
    Endictya oceanica diatom
    Coloured scanning electron micrograph intricately structured microscopic brochosomes granules secreted by leafhopper. — Stock Photo
    Coloured scanning electron micrograph intricately structured microscopic brochosomes granules secreted by leafhopper.
    Copepod, coloured scanning electron micrograph (SEM). — Stock Photo
    Copepod, coloured scanning electron micrograph (SEM).
    Colorectal cancer cell dividing — Stock Photo
    Colorectal cancer cell dividing
    Airport security guard with passengers walking through body scanner at airport terminal — Stock Photo
    Airport security guard with passengers walking through body scanner at airport terminal
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells. — Stock Photo
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells.
    Used surgical swab — Stock Photo
    Used surgical swab
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda). — Stock Photo
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda).
    Patient lying on mri machine in scanning room at hospital — Stock Photo
    Patient lying on mri machine in scanning room at hospital
    Traveller using self service check-in machine at airport — Stock Photo
    Traveller using self service check-in machine at airport
    Smooth hawksbeard (Crepis capillaris) seed, coloured scanning electron micrograph (SEM). — Stock Photo
    Smooth hawksbeard (Crepis capillaris) seed, coloured scanning electron micrograph (SEM).
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Nanostructures formed on a silicon surface — Stock Photo
    Nanostructures formed on a silicon surface
    Coloured scanning electron micrograph (SEM) of sensory inner hair cells from the organ of corti, in the cochlea of the inner ear. — Stock Photo
    Coloured scanning electron micrograph (SEM) of sensory inner hair cells from the organ of corti, in the cochlea of the inner ear.
    Blood clotting in an ovarian follicle — Stock Photo
    Blood clotting in an ovarian follicle
    Human blood cells — Stock Photo
    Human blood cells
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda). — Stock Photo
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda).
    Fibroblast cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Fibroblast cell, coloured scanning electron micrograph (SEM).
    Coloured scanning electron micrograph of osteocyte bone cell surrounded by bone tissue. — Stock Photo
    Coloured scanning electron micrograph of osteocyte bone cell surrounded by bone tissue.
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death. — Stock Photo
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death.
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample. — Stock Photo
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample.
    Coloured scanning electron micrograph (SEM) of a freeze fracture of the vagina showing the stratified squamous epithelium and the underlying lamina propria — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze fracture of the vagina showing the stratified squamous epithelium and the underlying lamina propria
    Fungal cells revealing sporangium with spores — Stock Photo
    Fungal cells revealing sporangium with spores
    Colored scanning electron micrograph of pollen grains from marigold flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from marigold flower.
    Coloured scanning electron micrograph (SEM) of uric acid crystals. — Stock Photo
    Coloured scanning electron micrograph (SEM) of uric acid crystals.
    Coloured scanning electron micrograph (SEM) of the interior of bone from a bird skull. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the interior of bone from a bird skull.
    Colored scanning electron micrograph of white blood cells and single platelet. — Stock Photo
    Colored scanning electron micrograph of white blood cells and single platelet.
    Colored scanning electron micrograph of human red blood cells erythrocytes, white blood cells leukocytes and platelet thrombocyte. — Stock Photo
    Colored scanning electron micrograph of human red blood cells erythrocytes, white blood cells leukocytes and platelet thrombocyte.
    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.
    Coloured scanning electron micrograph (SEM) of a section through fractured skeletal muscle to show large muscle bundles, or fascicles (green), surrounded by perimysium connective tissue (pink). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through fractured skeletal muscle to show large muscle bundles, or fascicles (green), surrounded by perimysium connective tissue (pink).