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    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
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Bacteria found in a sample of human faeces — Stock Photo
    Bacteria found in a sample of human faeces
    Customer making payment through smart phone in bar — Stock Photo
    Customer making payment through smart phone in bar
    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.
    Patient lying on mri machine in scanning room at hospital — Stock Photo
    Patient lying on mri machine in scanning room at hospital
    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
    Albumen crystals, coloured scanning electron micrograph (SEM). — Stock Photo
    Albumen crystals, coloured scanning electron micrograph (SEM).
    Coloured scanning electron micrograph (SEM) of a section through a foetal olfactory (smelling) sense organ known as the vomeronasal organ (VNO), or Jacobson organ. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a foetal olfactory (smelling) sense organ known as the vomeronasal organ (VNO), or Jacobson organ.
    Allergenic pet dander on dog hair, colored scanning electron micrograph. — Stock Photo
    Allergenic pet dander on dog hair, colored scanning electron micrograph.
    Human hair Caucasian brunette, coloured scanning electron micrograph. — Stock Photo
    Human hair Caucasian brunette, coloured scanning electron micrograph.
    Colored scanning electron micrograph of nanostructures formed on vanadium oxide surface by carbon dioxide laser. — Stock Photo
    Colored scanning electron micrograph of nanostructures formed on vanadium oxide surface by carbon dioxide laser.
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    Patient entering mri scanning machine at hospital — Stock Photo
    Patient entering mri scanning machine at hospital
    Coloured scanning electron micrograph of cancer cells migrating down pores. — Stock Photo
    Coloured scanning electron micrograph of cancer cells migrating down pores.
    Worker scanning box in warehouse — Stock Photo
    Worker scanning box in warehouse
    Doctors examining x-ray on digital tablet in hospital — Stock Photo
    Doctors examining x-ray on digital tablet in hospital
    Coloured scanning electron micrograph (SEM) of a freeze-fractured water lily stem showing numerous vascular bundles (grey) and large intercellular air spaces (holes). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a freeze-fractured water lily stem showing numerous vascular bundles (grey) and large intercellular air spaces (holes).
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli. — Stock Photo
    Colored scanning electron micrograph of rod-shaped Gram-negative bacteria Escherichia coli.
    Coloured scanning electron micrograph of fresh water centric diatoms frustules type of algae. — Stock Photo
    Coloured scanning electron micrograph of fresh water centric diatoms frustules type of algae.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Mid section of man making a payment by scanning qr code from smartphone at a cafe. digital and cashless payment technology concept — Stock Photo
    Mid section of man making a payment by scanning qr code from smartphone at a cafe. digital and cashless payment technology concept
    Prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Prostate cancer cells, coloured scanning electron micrograph.
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Colored scanning electron micrograph of human mesenchymal stem cell. — Stock Photo
    Colored scanning electron micrograph of human mesenchymal stem cell.
    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
    Passenger giving a passport and mobile phone to an airline check-in attendant at check-in counter — Stock Photo
    Passenger giving a passport and mobile phone to an airline check-in attendant at check-in counter
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets. — Stock Photo
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets.
    Cashier helping customer at supermarket checkout — Stock Photo
    Cashier helping customer at supermarket checkout
    Plaque-forming bacteria, colored scanning electron micrograph. — Stock Photo
    Plaque-forming bacteria, colored scanning electron micrograph.
    Female radiologist studying CT scans on monitors. — Stock Photo
    Female radiologist studying CT scans on monitors.
    Mixed oral bacteria — Stock Photo
    Mixed oral bacteria
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Male sex cell — Stock Photo
    Male sex cell
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus. — Stock Photo
    Coloured scanning electron micrograph of 293T cell infected with human immunodeficiency virus.
    Colored scanning electron micrograph of scales from silverfish insect living fossil. — Stock Photo
    Colored scanning electron micrograph of scales from silverfish insect living fossil.
    Airport security officer using a hand held metal detector to check a passenger in airport — Stock Photo
    Airport security officer using a hand held metal detector to check a passenger in airport
    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.
    Patient entering mri scanning machine at hospital — Stock Photo
    Patient entering mri scanning machine at hospital
    Smiling doctor consoling patient before mri scanning at hospital — Stock Photo
    Smiling doctor consoling patient before mri scanning at hospital
    Customer paying delivery man with contactless card at front door — Stock Photo
    Customer paying delivery man with contactless card at front door
    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.
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Male sex cell — Stock Photo
    Male sex cell
    Bluebottle fly foot — Stock Photo
    Bluebottle fly foot
    Electron micrograph of dental plaque — Stock Photo
    Electron micrograph of dental plaque
    Colored scanning electron micrograph of white blood cells and single platelet. — Stock Photo
    Colored scanning electron micrograph of white blood cells and single platelet.
    Dividing prostate gland cancer cells, colored scanning electron micrograph. — Stock Photo
    Dividing prostate gland cancer cells, colored scanning electron micrograph.
    Worker scanning box in warehouse — Stock Photo
    Worker scanning box in warehouse
    Albumen crystals, coloured scanning electron micrograph (SEM). — Stock Photo
    Albumen crystals, coloured scanning electron micrograph (SEM).
    Nanostructures formed on nickel surface — Stock Photo
    Nanostructures formed on nickel surface
    Red blood cells aggregated — Stock Photo
    Red blood cells aggregated
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells. — Stock Photo
    Coloured scanning electron micrograph of dividing Schizosaccharomyces pombe yeast cells.
    Activated human macrophage — Stock Photo
    Activated human macrophage
    Coloured scanning electron micrograph (SEM) of uric acid crystals. — Stock Photo
    Coloured scanning electron micrograph (SEM) of uric acid crystals.
    Colored scanning electron micrograph of breast cancer cell. — Stock Photo
    Colored scanning electron micrograph of breast cancer cell.
    Colored scanning electron micrograph of predatory ciliate protozoan Loxophyllum. — Stock Photo
    Colored scanning electron micrograph of predatory ciliate protozoan Loxophyllum.
    Lychnocanoma radiolarian shell — Stock Photo
    Lychnocanoma radiolarian shell