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    Woman using tablet computer on sofa — Stock Photo
    Woman using tablet computer on sofa
    Collagen bundles from the delicate connective tissue — Stock Photo
    Collagen bundles from the delicate connective tissue
    Coloured scanning electron micrograph (SEM) of epithelial cells lining the human trachea (windpipe). — Stock Photo
    Coloured scanning electron micrograph (SEM) of epithelial cells lining the human trachea (windpipe).
    Man's hand with credit card swipe through terminal for sale,Close up of hand using credit card swiping machine to pay,vintage style — Stock Photo
    Man's hand with credit card swipe through terminal for sale,Close up of hand using credit card swiping machine to pay,vintage style
    House dust mites — Stock Photo
    House dust mites
    Colored scanning electron micrograph of predatory ciliate protozoan Loxophyllum. — Stock Photo
    Colored scanning electron micrograph of predatory ciliate protozoan Loxophyllum.
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample. — Stock Photo
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample.
    Bacillus megaterium bacterial colony, coloured scanning electron micrograph. — Stock Photo
    Bacillus megaterium bacterial colony, coloured scanning electron micrograph.
    Young couple looking at mobile while having fun — Stock Photo
    Young couple looking at mobile while having fun
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant. — Stock Photo
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant.
    Businesswoman using digital tablet in cafeteria — Stock Photo
    Businesswoman using digital tablet in cafeteria
    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.
    Red blood cells — Stock Photo
    Red blood cells
    Clostridium phytofermentans bacteria — Stock Photo
    Clostridium phytofermentans bacteria
    Multi-generation men relaxing on blanket in backyard — Stock Photo
    Multi-generation men relaxing on blanket in backyard
    Streptococcus thermophilus bacteria — Stock Photo
    Streptococcus thermophilus bacteria
    Son helping senior father using laptop in kitchen — Stock Photo
    Son helping senior father using laptop in kitchen
    Caucasian man using digital tablet outdoors — Stock Photo
    Caucasian man using digital tablet outdoors
    Sperm cell with multiple tails — Stock Photo
    Sperm cell with multiple tails
    Electrical engineer working on circuit board and pressing buttons of electronic device. — Stock Photo
    Electrical engineer working on circuit board and pressing buttons of electronic device.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Nanostructures formed on a silicon surface — Stock Photo
    Nanostructures formed on a silicon surface
    Cardiac muscle from a healthy heart — Stock Photo
    Cardiac muscle from a healthy heart
    Student in wheelchair studying furnace electronic control system in HVAC classroom — Stock Photo
    Student in wheelchair studying furnace electronic control system in HVAC classroom
    Close-up of an electronic equipment in service centre — Stock Photo
    Close-up of an electronic equipment in service centre
    Coloured scanning electron micrograph (SEM) of a suture in a dog's skin wound. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a suture in a dog's skin wound.
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Baby boy engrossed with an electronic tablet — Stock Photo
    Baby boy engrossed with an electronic tablet
    Young man using digital tablet while sitting in cafe with cup of coffee. — Stock Photo
    Young man using digital tablet while sitting in cafe with cup of coffee.
    Micrograph of tendon fibres — Stock Photo
    Micrograph of tendon fibres
    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.
    Toddler girl in bathing suit using digital tablet at sofa — Stock Photo
    Toddler girl in bathing suit using digital tablet at sofa
    False-colour scanning electron micrograph of a section of healthy lung tissue, showing the microscopic air sacs (alveoli) where gas exchange takes place. — Stock Photo
    False-colour scanning electron micrograph of a section of healthy lung tissue, showing the microscopic air sacs (alveoli) where gas exchange takes place.
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Happy senior couple using digital tablet on porch — Stock Photo
    Happy senior couple using digital tablet on porch
    Scanning electron micrograph of dermestid beetle head. — Stock Photo
    Scanning electron micrograph of dermestid beetle head.
    Bacillus megaterium bacterial colony, coloured scanning electron micrograph. — Stock Photo
    Bacillus megaterium bacterial colony, coloured scanning electron micrograph.
    Hyaline cartilage, a semi-rigid connective tissue — Stock Photo
    Hyaline cartilage, a semi-rigid connective tissue
    Radiolarians amoeboid protozoa — Stock Photo
    Radiolarians amoeboid protozoa
    Tendon showing bundles of collagen fibres — Stock Photo
    Tendon showing bundles of collagen fibres
    Fractured bladder stone — Stock Photo
    Fractured bladder stone
    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)
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (red) are seen in the heads. Zebrafish eggs are transparent — Stock Photo
    Zebrafish young. Coloured scanning electron micrograph (SEM) of newly-hatched zebrafish (Danio rerio) young or fry. These fish are used to study embryonic development. The eyes (red) are seen in the heads. Zebrafish eggs are transparent
    Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells — Stock Photo
    Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (RBCs, erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells
    Male electrician student practicing in workshop — Stock Photo
    Male electrician student practicing in workshop
    Coloured scanning electron micrograph (SEM) of a wood anemone (Anemone nemerosa) anther (male reproductive part) covered in pollen. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a wood anemone (Anemone nemerosa) anther (male reproductive part) covered in pollen.
    T lymphocyte cells attached to cancer cell — Stock Photo
    T lymphocyte cells attached to cancer cell
    Woman showing digital tablet to women in community center — Stock Photo
    Woman showing digital tablet to women in community center
    Close-up of various electronic components in plastic boxes — Stock Photo
    Close-up of various electronic components in plastic boxes
    Man using digital tablet and cell phone in cafe — Stock Photo
    Man using digital tablet and cell phone in cafe
    Scanning electron microscopy of DNA molecules and red and white blood cells. — Stock Photo
    Scanning electron microscopy of DNA molecules and red and white blood cells.
    Non-activated blood cell fragments platelets, coloured scanning electron micrograph. — Stock Photo
    Non-activated blood cell fragments platelets, coloured scanning electron micrograph.
    Male computer programmer programming electronics in workshop — Stock Photo
    Male computer programmer programming electronics in workshop
    Cat flea head — Stock Photo
    Cat flea head
    Mother and daughter using digital tablet on bench outside airport — Stock Photo
    Mother and daughter using digital tablet on bench outside airport
    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).
    Freeze-fractured lens of an eye — Stock Photo
    Freeze-fractured lens of an eye
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules