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276 results

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    Collagen bundles from the delicate connective tissue — Stock Photo
    Collagen bundles from the delicate connective tissue
    Old church in English countryside — Stock Photo
    Old church in English countryside
    Stunning unique infra red landscape — Stock Photo
    Stunning unique infra red landscape
    Knee of obese patient with arthritis — Stock Photo
    Knee of obese patient with arthritis
    Chicken eggs in carton and close-up of Staphylococcus bacteria on white background. — Stock Photo
    Chicken eggs in carton and close-up of Staphylococcus bacteria on white background.
    Tumour affecting the pituitary gland — Stock Photo
    Tumour affecting the pituitary gland
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Lymphoma cancer cell — Stock Photo
    Lymphoma cancer cell
    Blood vessel in the lung — Stock Photo
    Blood vessel in the lung
    Blastocyst hollow ball of cells with fluid, digital illustration. — Stock Photo
    Blastocyst hollow ball of cells with fluid, digital illustration.
    Retina. Light micrograph (LM) of a section through a retina. The eye works by allowing light to be focused by the lens onto the retina — Stock Photo
    Retina. Light micrograph (LM) of a section through a retina. The eye works by allowing light to be focused by the lens onto the retina
    Red blood cells — Stock Photo
    Red blood cells
    Embryonic stem cells — Stock Photo
    Embryonic stem cells
    Old church in English countryside — Stock Photo
    Old church in English countryside
    Od shaped bacteria Tragelaphus — Stock Photo
    Od shaped bacteria Tragelaphus
    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.
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Brain with aneurysm in the middle cerebral artery — Stock Photo
    Brain with aneurysm in the middle cerebral artery
    Normal pelvic veins — Stock Photo
    Normal pelvic veins
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Microvilli from the small intestine — Stock Photo
    Microvilli from the small intestine
    Helicobacter pylori bacterium — Stock Photo
    Helicobacter pylori bacterium
    Coloured X-ray showing cancer in the left lung of a 55-year-old patient. — Stock Photo
    Coloured X-ray showing cancer in the left lung of a 55-year-old patient.
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets. — Stock Photo
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets.
    Fractured bladder stone — Stock Photo
    Fractured bladder stone
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Lymphoma cancer cell — Stock Photo
    Lymphoma cancer cell
    Abstract coloured scanning electron micrograph of crystalline surface of fractured gallstone. — Stock Photo
    Abstract coloured scanning electron micrograph of crystalline surface of fractured gallstone.
    Fibrosarcoma cells in late stage of mitosis — Stock Photo
    Fibrosarcoma cells in late stage of mitosis
    Fly head anatomy — Stock Photo
    Fly head anatomy
    Coloured computed tomography (CT) scan of a section through the chest of a 76-year-old male patient with a malignant (cancerous) tumour (bright, right) of the bronchus. — Stock Photo
    Coloured computed tomography (CT) scan of a section through the chest of a 76-year-old male patient with a malignant (cancerous) tumour (bright, right) of the bronchus.
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Breast cancer screening — Stock Photo
    Breast cancer screening
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms. — Stock Photo
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms.
    Colored scanning electron micrograph showing urethral epithelium of urethra. — Stock Photo
    Colored scanning electron micrograph showing urethral epithelium of urethra.
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Digital illustration of pollen grains on anther of Chinese hibiscus flower. — Stock Photo
    Digital illustration of pollen grains on anther of Chinese hibiscus flower.
    Dog hair, coloured scanning electron micrograph (SEM). — Stock Photo
    Dog hair, coloured scanning electron micrograph (SEM).
    Thyroid gland showing the follicles — Stock Photo
    Thyroid gland showing the follicles
    Leech, coloured scanning electron micrograph (SEM). — Stock Photo
    Leech, coloured scanning electron micrograph (SEM).
    Colored angiogram of carotid artery in neck of mature patient. — Stock Photo
    Colored angiogram of carotid artery in neck of mature patient.
    Piece of cake with close-up of Staphylococcus bacteria, food poisoning conceptual illustration. — Stock Photo
    Piece of cake with close-up of Staphylococcus bacteria, food poisoning conceptual illustration.
    Gram negative Calymmatobacterium sp. — Stock Photo
    Gram negative Calymmatobacterium sp.
    Old church in English countryside — Stock Photo
    Old church in English countryside
    Horse chestnut pollen grain — Stock Photo
    Horse chestnut pollen grain
    Cardiac muscle from a healthy heart — Stock Photo
    Cardiac muscle from a healthy heart
    Od shaped bacteria Tragelaphus — Stock Photo
    Od shaped bacteria Tragelaphus
    Chest with a heart pacemaker — Stock Photo
    Chest with a heart pacemaker
    Knee of obese patient with arthritis — Stock Photo
    Knee of obese patient with arthritis
    Fractured myelinated nerve fibres — Stock Photo
    Fractured myelinated nerve fibres
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Tumour affecting the pituitary gland — Stock Photo
    Tumour affecting the pituitary gland
    Crypts of Lieberkuhn. Light micrograph (LM). Crypts of Lieberkuhn of the colon shown in cross section. Crypts are long blind-ending tube-like extensions of the surface epithelial lining of the gut — Stock Photo
    Crypts of Lieberkuhn. Light micrograph (LM). Crypts of Lieberkuhn of the colon shown in cross section. Crypts are long blind-ending tube-like extensions of the surface epithelial lining of the gut
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Human hair shafts, digital illustration. — Stock Photo
    Human hair shafts, digital illustration.
    Brain with aneurysm in the middle cerebral artery — Stock Photo
    Brain with aneurysm in the middle cerebral artery
    Skin cancer cell — Stock Photo
    Skin cancer cell
    Normal head and brain, MRI scan — Stock Photo
    Normal head and brain, MRI scan