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    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Cerebellum tissue, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Cerebellum tissue, light micrograph. Haematoxylin and eosin stain.
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.
    Alveolar macrophage phagocytosis of E. coli — Stock Photo
    Alveolar macrophage phagocytosis of E. coli
    Leech, coloured scanning electron micrograph (SEM). — Stock Photo
    Leech, coloured scanning electron micrograph (SEM).
    Section through a nasal polyp — Stock Photo
    Section through a nasal polyp
    Fungal cells showing sporangium — Stock Photo
    Fungal cells showing sporangium
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli, commonly known as E coli. — Stock Photo
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli, commonly known as E coli.
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Bluebottle fly foot — Stock Photo
    Bluebottle fly foot
    Coloured scanning electron micrograph of surface of prostate cancer cells. — Stock Photo
    Coloured scanning electron micrograph of surface of prostate cancer cells.
    Acinar pancreatic cell — Stock Photo
    Acinar pancreatic cell
    Mobile phone speaker, colored scanning electron micrograph. — Stock Photo
    Mobile phone speaker, colored scanning electron micrograph.
    Hepatic bile duct infected with cocidian protozoa — Stock Photo
    Hepatic bile duct infected with cocidian protozoa
    Lymph node in tuberculosis — Stock Photo
    Lymph node in tuberculosis
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample. — Stock Photo
    Colored scanning electron micrograph of resting T-lymphocytes from human blood sample.
    Chronic pyelonephritis, computer illustration and light micrograph — Stock Photo
    Chronic pyelonephritis, computer illustration and light micrograph
    Adenocarcinoma of the sigmoid colon — Stock Photo
    Adenocarcinoma of the sigmoid colon
    Longitudinal section of a human sciatic l nerve — Stock Photo
    Longitudinal section of a human sciatic l nerve
    Purkinje cells and their dendritic processes — Stock Photo
    Purkinje cells and their dendritic processes
    Adenocarcinoma of the thyroid gland — Stock Photo
    Adenocarcinoma of the thyroid gland
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Illustration of abstract cancer cell with tentacles. — Stock Photo
    Illustration of abstract cancer cell with tentacles.
    Coloured scanning electron micrograph (SEM) of a section through wood showing the phloem vessels (dark green holes) and xylem tissue (lower frame). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through wood showing the phloem vessels (dark green holes) and xylem tissue (lower frame).
    Immature parasitic trematode — Stock Photo
    Immature parasitic trematode
    Undifferentiated pleomorphic sarcoma of bone — Stock Photo
    Undifferentiated pleomorphic sarcoma of bone
    Colored scanning electron micrograph of pollen grain cell from hollyhock hibiscus flower. — Stock Photo
    Colored scanning electron micrograph of pollen grain cell from hollyhock hibiscus flower.
    Fungal cells with sporangia and spores — Stock Photo
    Fungal cells with sporangia and spores
    Paranasal sinus epithelium — Stock Photo
    Paranasal sinus epithelium
    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
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres. — Stock Photo
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres.
    Streptococcus thermophilus bacteria — Stock Photo
    Streptococcus thermophilus bacteria
    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
    Hyaline cartilage, a semi-rigid connective tissue — Stock Photo
    Hyaline cartilage, a semi-rigid connective tissue
    Lung tissue, coloured transmission electron micrograph (TEM). of a pulmonary capillary containing two red blood cells (red) and three platelets (brown). A basement membrane (cyan) surround the endothelium separating it from the alveolar epithelium — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM). of a pulmonary capillary containing two red blood cells (red) and three platelets (brown). A basement membrane (cyan) surround the endothelium separating it from the alveolar epithelium
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake — Stock Photo
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake
    Bacteria Erysipelothrix rhusiopathiae — Stock Photo
    Bacteria Erysipelothrix rhusiopathiae
    Venule. Coloured transmission electron micrograph (TEM). Venules are small veins that transport deoxygenated blood from the capillary beds to the veins. Endothelial cells line the entire circulatory system — Stock Photo
    Venule. Coloured transmission electron micrograph (TEM). Venules are small veins that transport deoxygenated blood from the capillary beds to the veins. Endothelial cells line the entire circulatory system
    Coloured scanning electron micrograph (SEM) of a fracture through the thyroid gland revealing several follicles (yellow). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a fracture through the thyroid gland revealing several follicles (yellow).
    Fractured bladder stone — Stock Photo
    Fractured bladder stone
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Lung tissue, coloured transmission electron micrograph (TEM). — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM).
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Light micrograph of a colon biopsy from a colonoscopy. The pathology report describes normal colonic mucosa fragment with colic glands. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of a colon biopsy from a colonoscopy. The pathology report describes normal colonic mucosa fragment with colic glands. Haematoxylin and eosin stain.
    Colored scanning electron micrograph of osteosarcoma bone cancer cell. — Stock Photo
    Colored scanning electron micrograph of osteosarcoma bone cancer cell.
    Scanning electron micrograph of PC12 neurone in culture. — Stock Photo
    Scanning electron micrograph of PC12 neurone in culture.
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph.
    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.
    Nanostructures formed on a titanium surface — Stock Photo
    Nanostructures formed on a titanium surface
    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
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus — Stock Photo
    Pharmaceutical research. Potential new medicines and vaccines on electron micrograph of virus
    Colored scanning electron micrograph of nanostructures formed on nickel surface. — Stock Photo
    Colored scanning electron micrograph of nanostructures formed on nickel surface.
    Human hair with dandruff and close-up of light micrograph, digital artwork. — Stock Photo
    Human hair with dandruff and close-up of light micrograph, digital artwork.
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    Human red blood cells and platelets — Stock Photo
    Human red blood cells and platelets
    Alveolar macrophage phagocytosis of E. coli — Stock Photo
    Alveolar macrophage phagocytosis of E. coli
    Colorectal cancer cell dividing — Stock Photo
    Colorectal cancer cell dividing
    Clostridium phytofermentans bacteria — Stock Photo
    Clostridium phytofermentans bacteria
    Blood cells, light micrograph. — Stock Photo
    Blood cells, light micrograph.
    Heart strings strings — Stock Photo
    Heart strings strings