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    Alveolar macrophage phagocytosis of E. coli — Stock Photo
    Alveolar macrophage phagocytosis of E. coli
    Lining of the small intestine — Stock Photo
    Lining of the small intestine
    Coloured frontal (left) and oblique (right) X-rays of a foot of a diabetic, showing an amputated second toe. — Stock Photo
    Coloured frontal (left) and oblique (right) X-rays of a foot of a diabetic, showing an amputated second toe.
    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
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Researcher holding a petri dish — Stock Photo
    Researcher holding a petri dish
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    Colored scanning electron micrograph of red blood cells. — Stock Photo
    Colored scanning electron micrograph of red blood cells.
    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
    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
    Asparagus beetle head — Stock Photo
    Asparagus beetle head
    Radiolaria protozoa shells — Stock Photo
    Radiolaria protozoa shells
    Surface of the foot of a common pollen beetle — Stock Photo
    Surface of the foot of a common pollen beetle
    Bacteria from a coin. Coloured scanning electron micrograph (SEM) of bacteria cultured from a english one pound coin — Stock Photo
    Bacteria from a coin. Coloured scanning electron micrograph (SEM) of bacteria cultured from a english one pound coin
    Tendon, coloured scanning electron micrograph showing bundles of collagen fibres. — Stock Photo
    Tendon, coloured scanning electron micrograph showing bundles of collagen fibres.
    Healthy lungs of a 30 year old patient — Stock Photo
    Healthy lungs of a 30 year old patient
    Pinned wrist fracture, coloured frontal X-ray. — Stock Photo
    Pinned wrist fracture, coloured frontal X-ray.
    White blood cell — Stock Photo
    White blood cell
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    White blood cell — Stock Photo
    White blood cell
    Normal human brain — Stock Photo
    Normal human brain
    Zika virus particles — Stock Photo
    Zika virus particles
    Leg in stiletto shoe, coloured MRI style X-ray. — Stock Photo
    Leg in stiletto shoe, coloured MRI style X-ray.
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    Coloured X-ray of arthritic knees — Stock Photo
    Coloured X-ray of arthritic knees
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    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
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Coloured scanning electron micrograph of surface of prostate cancer cells. — Stock Photo
    Coloured scanning electron micrograph of surface of prostate cancer cells.
    Microvilli from the small intestine — Stock Photo
    Microvilli from the small intestine
    Coloured X-ray of arthritic knees — Stock Photo
    Coloured X-ray of arthritic knees
    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
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Sensory palps of Rabbit flea — Stock Photo
    Sensory palps of Rabbit flea
    Quartz crystals structure — Stock Photo
    Quartz crystals structure
    Human hair, coloured scanning electron micrograph (SEM). — Stock Photo
    Human hair, coloured scanning electron micrograph (SEM).
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Brain with aneurysm in the middle cerebral artery — Stock Photo
    Brain with aneurysm in the middle cerebral artery
    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.
    Degenerative foot deformation, X-ray — Stock Photo
    Degenerative foot deformation, X-ray
    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
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen. — Stock Photo
    Composite image of nasal epithelium and pollen. Coloured Scanning Electron Micrograph (SEM) of the surface of nasal epithelium with inhaled in pollen.
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Scanning electron micrograph of Brevibacteria on human feet causing odour. — Stock Photo
    Scanning electron micrograph of Brevibacteria on human feet causing odour.
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Coloured scanning electron micrograph of bacteria from culture of breast milk. — Stock Photo
    Coloured scanning electron micrograph of bacteria from culture of breast milk.
    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.
    Horse chestnut leaf. Coloured scanning electron micrograph (SEM) of the underside of a horse chestnut leaf (Aesculus hippocastanum) Numerous hairs (trichomes) cover the surface — Stock Photo
    Horse chestnut leaf. Coloured scanning electron micrograph (SEM) of the underside of a horse chestnut leaf (Aesculus hippocastanum) Numerous hairs (trichomes) cover the surface
    Dental plaque scanning electron micrograph — Stock Photo
    Dental plaque scanning electron micrograph
    Normal skull structure of young adult — Stock Photo
    Normal skull structure of young adult
    Bundle of flowers (Dianthus sp), coloured X-ray. — Stock Photo
    Bundle of flowers (Dianthus sp), coloured X-ray.
    Fungal cells and sporangia — Stock Photo
    Fungal cells and sporangia
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    Lymphoma cancer cell. Coloured scanning electron micrograph (SEM) of a lymphoma cell showing early apoptotic changes. A lymphoma is a cell of the immune system that has become cancerous. The cell becomes immortal and can grow indefinitely — Stock Photo
    Lymphoma cancer cell. Coloured scanning electron micrograph (SEM) of a lymphoma cell showing early apoptotic changes. A lymphoma is a cell of the immune system that has become cancerous. The cell becomes immortal and can grow indefinitely
    Normal ankle joint, coloured frontal X-ray. — Stock Photo
    Normal ankle joint, coloured frontal X-ray.
    Long leaves and pastel flower buds, coloured X-ray. — Stock Photo
    Long leaves and pastel flower buds, coloured X-ray.
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull. — Stock Photo
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull.