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    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
    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
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    Ankle of patient with osteoarthritis — Stock Photo
    Ankle of patient with osteoarthritis
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    T lymphocyte cells attached to cancer cell — Stock Photo
    T lymphocyte cells attached to cancer cell
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats — Stock Photo
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Scorpion fly foot — Stock Photo
    Scorpion fly foot
    Cannabis plant. Coloured scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant. The pointed hairs are called lithocyst cells. They contain cystoliths (calcium carbonate crystals) — Stock Photo
    Cannabis plant. Coloured scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant. The pointed hairs are called lithocyst cells. They contain cystoliths (calcium carbonate crystals)
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species — Stock Photo
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species
    Coloured scanning electron micrograph of bacteria cultured from mobile phone. — Stock Photo
    Coloured scanning electron micrograph of bacteria cultured from mobile phone.
    Mobile phone speaker, colored scanning electron micrograph. — Stock Photo
    Mobile phone speaker, colored scanning electron micrograph.
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Activated platelets with canalicular system — Stock Photo
    Activated platelets with canalicular system
    Colored scanning electron micrograph of variety of yeast species growing in larval tunnel of codling moth Cydia pomonella in mature apple. — Stock Photo
    Colored scanning electron micrograph of variety of yeast species growing in larval tunnel of codling moth Cydia pomonella in mature apple.
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Colored scanning electron micrograph of surface of human fallopian tube with epithelium of columnar cells with cilia. — Stock Photo
    Colored scanning electron micrograph of surface of human fallopian tube with epithelium of columnar cells with cilia.
    Arthritic hand anatomy — Stock Photo
    Arthritic hand anatomy
    Colored scanning electron micrograph of immature pig sperm from epididymis. — Stock Photo
    Colored scanning electron micrograph of immature pig sperm from epididymis.
    Colored scanning electron micrograph of diatoms photosynthetic single-celled algae. — Stock Photo
    Colored scanning electron micrograph of diatoms photosynthetic single-celled algae.
    Colored scanning electron micrograph image of tooth dentine, mineralised connective tissue found under tooth enamel. — Stock Photo
    Colored scanning electron micrograph image of tooth dentine, mineralised connective tissue found under tooth enamel.
    Coloured scanning electron micrograph of cancer cells migrating down pores. — Stock Photo
    Coloured scanning electron micrograph of cancer cells migrating down pores.
    Poppy (Papaver orientalis), coloured X-ray — Stock Photo
    Poppy (Papaver orientalis), coloured X-ray
    Mycobacterium smegmatis bacteria — Stock Photo
    Mycobacterium smegmatis bacteria
    Coloured scanning electron micrograph of the rod-shaped, Gram-negative bacteria Escherichia coli, commonly known as E. coli — Stock Photo
    Coloured scanning electron micrograph of the rod-shaped, Gram-negative bacteria Escherichia coli, commonly known as E. coli
    Striated muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding-pattern of the muscle fibrils is seen — Stock Photo
    Striated muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding-pattern of the muscle fibrils is seen
    Coloured X-ray of arthritic knees — Stock Photo
    Coloured X-ray of arthritic knees
    Colored scanning electron micrograph of rod-shaped, gram-negative bacteria Escherichia coli of human intestine. — Stock Photo
    Colored scanning electron micrograph of rod-shaped, gram-negative bacteria Escherichia coli of human intestine.
    Tumour affecting the pituitary gland — Stock Photo
    Tumour affecting the pituitary gland
    Colored computed tomography scan of brain section of senior female patient with glioblastoma brain cancer. — Stock Photo
    Colored computed tomography scan of brain section of senior female patient with glioblastoma brain cancer.
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue — Stock Photo
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue
    Prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Prostate cancer cells, coloured scanning electron micrograph.
    Colored computed tomography scan of brain section of senior female patient with glioblastoma brain cancer. — Stock Photo
    Colored computed tomography scan of brain section of senior female patient with glioblastoma brain cancer.
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    Degenerative foot deformation — Stock Photo
    Degenerative foot deformation
    Red blood cells with fibrin — Stock Photo
    Red blood cells with fibrin
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Coloured scanning electron micrograph of bacteria cultured from mobile phone surface. — Stock Photo
    Coloured scanning electron micrograph of bacteria cultured from mobile phone surface.
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle
    Mouse mammary tumour virus (MMTV) particles (blue), coloured transmission electron micrograph (TEM). MMTV induces malignant tumours in the mammary glands of certain strains of laboratory mice — Stock Photo
    Mouse mammary tumour virus (MMTV) particles (blue), coloured transmission electron micrograph (TEM). MMTV induces malignant tumours in the mammary glands of certain strains of laboratory mice
    Diatom eukaryotic algae — Stock Photo
    Diatom eukaryotic algae
    Breast cancer screening — Stock Photo
    Breast cancer screening
    Small intestine. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, called villi. The intestinal surface( pink) is exposed to food — Stock Photo
    Small intestine. Coloured scanning electron micrograph (SEM) of a freeze-fractured of the small intestine. The surface consists of deep folds, called villi. The intestinal surface( pink) is exposed to food
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Bone cancer cells. Coloured scanning electron micrograph of osteosarcoma cancer cells. Osteosarcoma is an aggressive malignant neoplasm arising from primitive transformed mesenchymal cells — Stock Photo
    Bone cancer cells. Coloured scanning electron micrograph of osteosarcoma cancer cells. Osteosarcoma is an aggressive malignant neoplasm arising from primitive transformed mesenchymal cells
    Colored scanning electron micrograph of starch grains in seed of legume. — Stock Photo
    Colored scanning electron micrograph of starch grains in seed of legume.
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Colored scanning electron micrograph of osteoblast osteocyte bone cell. — Stock Photo
    Colored scanning electron micrograph of osteoblast osteocyte bone cell.
    Asparagus beetle head — Stock Photo
    Asparagus beetle head
    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines — Stock Photo
    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines
    Shoulder and elbow joints anatomy — Stock Photo
    Shoulder and elbow joints anatomy
    Candida albicans infected medical catheter — Stock Photo
    Candida albicans infected medical catheter
    Hand of a patient with osteoarthritis — Stock Photo
    Hand of a patient with osteoarthritis
    Colored computed tomography scan of section through brain of senior male patient with dementia. — Stock Photo
    Colored computed tomography scan of section through brain of senior male patient with dementia.
    Fungal cells showing sporangium — Stock Photo
    Fungal cells showing sporangium
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Coloured profile X-ray of a human mandible (lower jaw). — Stock Photo
    Coloured profile X-ray of a human mandible (lower jaw).