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    Leech, coloured scanning electron micrograph (SEM). — Stock Photo
    Leech, coloured scanning electron micrograph (SEM).
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Sarcoptic mange mites eggs — Stock Photo
    Sarcoptic mange mites eggs
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    House dust mites — Stock Photo
    House dust mites
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Dog hair, coloured scanning electron micrograph (SEM).In dogs several hairs emerge from a single follicle. — Stock Photo
    Dog hair, coloured scanning electron micrograph (SEM).In dogs several hairs emerge from a single follicle.
    Eyelash follicle, coloured scanning electron micrograph (SEM). — Stock Photo
    Eyelash follicle, coloured scanning electron micrograph (SEM).
    House dust mites — Stock Photo
    House dust mites
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Fibrosarcoma cells in late stage of mitosis — Stock Photo
    Fibrosarcoma cells in late stage of mitosis
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    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.
    Brain with aneurysm in the middle cerebral artery — Stock Photo
    Brain with aneurysm in the middle cerebral artery
    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
    Oligodendrocyte cell structure — Stock Photo
    Oligodendrocyte cell structure
    Brain with aneurysm in the middle cerebral artery — Stock Photo
    Brain with aneurysm in the middle cerebral artery
    Plaque-forming bacteria — Stock Photo
    Plaque-forming bacteria
    Resting T lymphocytes. Coloured scanning electron micrograph (SEM) of resting T lymphocytes from a human blood sample. T lymphocytes, or T cells, are a type of white blood cell and components of the body's immune system — Stock Photo
    Resting T lymphocytes. Coloured scanning electron micrograph (SEM) of resting T lymphocytes from a human blood sample. T lymphocytes, or T cells, are a type of white blood cell and components of the body's immune system
    Degenerative foot deformation, X-ray — Stock Photo
    Degenerative foot deformation, X-ray
    Human hair shafts, digital illustration. — Stock Photo
    Human hair shafts, digital illustration.
    Red blood cells — Stock Photo
    Red blood cells
    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.
    Leech, coloured scanning electron micrograph (SEM). — Stock Photo
    Leech, coloured scanning electron micrograph (SEM).
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Pancreatic islet cells. Colored transmission electron micrograph (TEM) of a section through pancreas tissue, showing cells known as Islets of Langerhans. These cells occur in distinct ovoid clusters numbering about 1 million in humans — Stock Photo
    Pancreatic islet cells. Colored transmission electron micrograph (TEM) of a section through pancreas tissue, showing cells known as Islets of Langerhans. These cells occur in distinct ovoid clusters numbering about 1 million in humans
    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.
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Bundle of flowers (Dianthus sp), coloured X-ray. — Stock Photo
    Bundle of flowers (Dianthus sp), coloured X-ray.
    Staphylococcus aureus coccoid bacteria, colored scanning electron micrograph. — Stock Photo
    Staphylococcus aureus coccoid bacteria, colored scanning electron micrograph.
    Normal blood vessels, X-ray — Stock Photo
    Normal blood vessels, X-ray
    Alarm clock, coloured X-ray. — Stock Photo
    Alarm clock, coloured X-ray.
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Shoulder and elbow joints anatomy — Stock Photo
    Shoulder and elbow joints anatomy
    Salt water pennate diatom frustule — Stock Photo
    Salt water pennate diatom frustule
    Skin cancer cell — Stock Photo
    Skin cancer cell
    Blade of grass with a serrated edge — Stock Photo
    Blade of grass with a serrated edge
    Crystalline lens of the eye — Stock Photo
    Crystalline lens of the eye
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female — Stock Photo
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    Activated blood cell fragments platelets, coloured scanning electron micrograph. — Stock Photo
    Activated blood cell fragments platelets, coloured scanning electron micrograph.
    Prostate cancer cell, coloured scanning electron micrograph. — Stock Photo
    Prostate cancer cell, coloured scanning electron micrograph.
    Soil bacteria, coloured scanning electron micrograph. — Stock Photo
    Soil bacteria, coloured scanning electron micrograph.
    Breast cancer screening — Stock Photo
    Breast cancer screening
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    Dental plaque scanning electron micrograph — Stock Photo
    Dental plaque scanning electron micrograph
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    Degenerative foot deformation — Stock Photo
    Degenerative foot deformation
    Intestinal microvilli. Coloured scanning electron micrograph (SEM) of microvilli from the small intestine. These tiny structures form a dense brush-like covering on the absorptive surfaces of the cells lining the small intestine — Stock Photo
    Intestinal microvilli. Coloured scanning electron micrograph (SEM) of microvilli from the small intestine. These tiny structures form a dense brush-like covering on the absorptive surfaces of the cells lining the small intestine
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    Coloured scanning electron micrograph (SEM) of hooks from a hooks and loops fastener, a two-sheet material used to fasten clothes and other fabrics. — Stock Photo
    Coloured scanning electron micrograph (SEM) of hooks from a hooks and loops fastener, a two-sheet material used to fasten clothes and other fabrics.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Activated platelet cells — Stock Photo
    Activated platelet cells
    Colored scanning electron micrograph of breast cancer cell. — Stock Photo
    Colored scanning electron micrograph of breast cancer cell.
    Colored scanning electron micrograph of red blood cells. — Stock Photo
    Colored scanning electron micrograph of red blood cells.
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid — Stock Photo
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid
    Bacteria found in a sample of human faeces — Stock Photo
    Bacteria found in a sample of human faeces
    Hair follicles. Coloured scanning electron micrograph (SEM). The outer layer of hair (the cuticle) has overlapping scales of keratin. These scales are thought to prevent hairs from matting together — Stock Photo
    Hair follicles. Coloured scanning electron micrograph (SEM). The outer layer of hair (the cuticle) has overlapping scales of keratin. These scales are thought to prevent hairs from matting together
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph. — Stock Photo
    Heart capillary with red blood cell between muscle fibres, colored scanning electron micrograph.
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle