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    Intestinal brush border in small intestine showing numerous microvilli, colored transmission electron micrograph. — Stock Photo
    Intestinal brush border in small intestine showing numerous microvilli, colored transmission electron micrograph.
    Influenza viruses budding from host cell — Stock Photo
    Influenza viruses budding from host cell
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Wild mustard flower petal surface (Brassica kaber), coloured scanning electron micrograph (SEM). — Stock Photo
    Wild mustard flower petal surface (Brassica kaber), coloured scanning electron micrograph (SEM).
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    False Lilies of the Valley plants with flowers and green leaves — Stock Photo
    False Lilies of the Valley plants with flowers and green leaves
    Colored angiogram of carotid artery in neck of mature patient. — Stock Photo
    Colored angiogram of carotid artery in neck of mature patient.
    False Ocellaris Clownfish — Stock Photo
    False Ocellaris Clownfish
    Skin cancer cell — Stock Photo
    Skin cancer cell
    Bird bone tissue — Stock Photo
    Bird bone tissue
    Fisherman holding fresh caught Jobfish. Tahiti — Stock Photo
    Fisherman holding fresh caught Jobfish. Tahiti
    Scanning electron micrograph of dermestid beetle head. — Stock Photo
    Scanning electron micrograph of dermestid beetle head.
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Wildflower meadow along Lost Lake Trail, Resurrection Peaks in the background. Chugach National Forest, Kenai Peninsula, South-central Alaska in summertime; Seward, Alaska, United States of America — Stock Photo
    Wildflower meadow along Lost Lake Trail, Resurrection Peaks in the background. Chugach National Forest, Kenai Peninsula, South-central Alaska in summertime; Seward, Alaska, United States of America
    Woody stem section. Coloured scanning electron micrograph (SEM) of a transverse section through the stem of a woody plant. The majority of tissue seen here is secondary xylem (dark brown) — Stock Photo
    Woody stem section. Coloured scanning electron micrograph (SEM) of a transverse section through the stem of a woody plant. The majority of tissue seen here is secondary xylem (dark brown)
    Centric fossil diatom frustule — Stock Photo
    Centric fossil diatom frustule
    Black colleagues examining denture in laboratory — Stock Photo
    Black colleagues examining denture in laboratory
    Sensory palps of Rabbit flea — Stock Photo
    Sensory palps of Rabbit flea
    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
    White blood cell — Stock Photo
    White blood cell
    West End neighborhood of Vancouver and Burrard Street Bridge across False creek, British Columbia, Canada. — Stock Photo
    West End neighborhood of Vancouver and Burrard Street Bridge across False creek, British Columbia, Canada.
    Cotton bud with ear wax embedded in fibres, coloured scanning electron micrograph (SEM). — Stock Photo
    Cotton bud with ear wax embedded in fibres, coloured scanning electron micrograph (SEM).
    Closeup of a denture in a laboratory — Stock Photo
    Closeup of a denture in a laboratory
    Old church in English countryside — Stock Photo
    Old church in English countryside
    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
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( blue) is an insulating fatty layer that surrounds the myelinated nerve fibres (pink) — Stock Photo
    Peripheral nerve. Coloured transmission electron micrograph (TEM) of a section through a small peripheral nerve. Myelin( blue) is an insulating fatty layer that surrounds the myelinated nerve fibres (pink)
    Man holding redfish. Venice, louisiana, united states of america — Stock Photo
    Man holding redfish. Venice, louisiana, united states of america
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    Black colleagues examining denture in laboratory — Stock Photo
    Black colleagues examining denture in laboratory
    Human hair Caucasian brunette, coloured scanning electron micrograph. — Stock Photo
    Human hair Caucasian brunette, coloured scanning electron micrograph.
    Coloured scanning electron micrograph of breast cancer cells. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cells.
    Old church in English countryside — Stock Photo
    Old church in English countryside
    Healthy lungs of a 30 year old patient — Stock Photo
    Healthy lungs of a 30 year old patient
    Nanoscale spikes formed on gold surface — Stock Photo
    Nanoscale spikes formed on gold surface
    Sperm cell in a fallopian tube — Stock Photo
    Sperm cell in a fallopian tube
    Human skeleton showing kidneys, stomach, intestines and nervous system — Stock Photo
    Human skeleton showing kidneys, stomach, intestines and nervous system
    Happy African American woman with braids and black bearded man smiling and looking at camera while creating dentures in modern laboratory — Stock Photo
    Happy African American woman with braids and black bearded man smiling and looking at camera while creating dentures in modern laboratory
    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
    Nanostructures formed on a tantalum surface — Stock Photo
    Nanostructures formed on a tantalum surface
    Cancellous Bone tissue — Stock Photo
    Cancellous Bone tissue
    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
    Yellow brain tumour on magnetic resonance imaging scan, illustration. — Stock Photo
    Yellow brain tumour on magnetic resonance imaging scan, illustration.
    Young vain man in stylish wear with hat standing on tiled wall looking away — Stock Photo
    Young vain man in stylish wear with hat standing on tiled wall looking away
    Dental floss with cheek cells — Stock Photo
    Dental floss with cheek cells
    Coloured scanning electron micrograph of bacteria cultured from mobile phone surface. — Stock Photo
    Coloured scanning electron micrograph of bacteria cultured from mobile phone surface.
    Coloured scanning electron micrograph of breast cancer cells. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cells.
    Young vain man in stylish wear with lady's purse standing on tiled wall while looking at camera — Stock Photo
    Young vain man in stylish wear with lady's purse standing on tiled wall while looking at camera
    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
    Abstract coloured scanning electron micrograph of crystalline surface of fractured gallstone. — Stock Photo
    Abstract coloured scanning electron micrograph of crystalline surface of fractured gallstone.
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    Osteoblasts. Colored transmission electron micrograph (TEM) of osteoblasts, bone-producing cells (purple and pink). They contain rough endoplasmic reticulum (RER), which produces, modifies and transports proteins, and nucleus — Stock Photo
    Osteoblasts. Colored transmission electron micrograph (TEM) of osteoblasts, bone-producing cells (purple and pink). They contain rough endoplasmic reticulum (RER), which produces, modifies and transports proteins, and nucleus
    Parotid salivary gland — Stock Photo
    Parotid salivary gland
    False clownfish swimming over anemone — Stock Photo
    False clownfish swimming over anemone
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    False Ocellaris Clownfish — Stock Photo
    False Ocellaris Clownfish
    Hair follicles of human skin — Stock Photo
    Hair follicles of human skin
    Young vain man in stylish wear with long nails standing on tiled wall covering eyes — Stock Photo
    Young vain man in stylish wear with long nails standing on tiled wall covering eyes
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (red) and jaws. Magnification: x50 when printed 10 centimetres wide. — Stock Photo
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (red) and jaws. Magnification: x50 when printed 10 centimetres wide.
    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).
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain