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    Coloured scanning electron micrograph of cancer cells migrating down pores. — Stock Photo
    Coloured scanning electron micrograph of cancer cells migrating down pores.
    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.
    Coloured scanning electron micrograph of bacteria cultured from mobile phone. — Stock Photo
    Coloured scanning electron micrograph of bacteria cultured from mobile phone.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Young asian female doctor with report in a practice — Stock Photo
    Young asian female doctor with report in a practice
    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).
    Triceratium sp. diatom algae — Stock Photo
    Triceratium sp. diatom algae
    Boy using electronic games device. — Stock Photo
    Boy using electronic games device.
    Lung tissue, coloured transmission electron micrograph (TEM). — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM).
    Colored scanning electron micrograph of pollen grains from marigold flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from marigold flower.
    Hyaline cartilage, a semi-rigid connective tissue — Stock Photo
    Hyaline cartilage, a semi-rigid connective tissue
    Komodo dragon skin, coloured scanning electron micrograph (SEM). The Komodo dragon (Varanus komodoensis) has armoured scaly skin. It is the largest lizard in the world, reaching over three metres in length — Stock Photo
    Komodo dragon skin, coloured scanning electron micrograph (SEM). The Komodo dragon (Varanus komodoensis) has armoured scaly skin. It is the largest lizard in the world, reaching over three metres in length
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    Colored scanning electron micrograph of bundles of sensory cilia cells in macula utriculi within labyrinth of human inner ear. — Stock Photo
    Colored scanning electron micrograph of bundles of sensory cilia cells in macula utriculi within labyrinth of human inner ear.
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Architect's model of a house. — Stock Photo
    Architect's model of a house.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Woman buying potted plant in garden centre — Stock Photo
    Woman buying potted plant in garden centre
    Student in wheelchair studying furnace electronic control system in HVAC classroom — Stock Photo
    Student in wheelchair studying furnace electronic control system in HVAC classroom
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    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
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Fractured bladder stone — Stock Photo
    Fractured bladder stone
    Gastrotrich eggs. Coloured scanning electron micrograph (SEM) of a Chaetonotus sp. gastrotrich eggs. Gastrotrichs are microscopic, worm-like animals found in both freshwater and marine habitats — Stock Photo
    Gastrotrich eggs. Coloured scanning electron micrograph (SEM) of a Chaetonotus sp. gastrotrich eggs. Gastrotrichs are microscopic, worm-like animals found in both freshwater and marine habitats
    Colored scanning electron micrograph of white blood cells and single platelet. — Stock Photo
    Colored scanning electron micrograph of white blood cells and single platelet.
    Pre-adolescent blogger girl using laptop while soldering circuit board of electric toy car in office. — Stock Photo
    Pre-adolescent blogger girl using laptop while soldering circuit board of electric toy car in office.
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres. — Stock Photo
    Fat (adipose) tissue, coloured scanning electron micrograph (SEM). The fat cells (adipocytes, round) are surrounded by collagen fibres.
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    Man using digital tablet lying on the bed — Stock Photo
    Man using digital tablet lying on the bed
    Coloured scanning electron micrograph of breast cancer cell. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cell.
    Bougainvillea pollen grain — Stock Photo
    Bougainvillea pollen grain
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Successful adult businessman using digital tablet in lobby — Stock Photo
    Successful adult businessman using digital tablet in lobby
    PC12 neurone in culture — Stock Photo
    PC12 neurone in culture
    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
    Dividing prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Dividing prostate cancer cells, coloured scanning electron micrograph.
    Man drinking coffee using digital tablet on balcony — Stock Photo
    Man drinking coffee using digital tablet on balcony
    Respiratory syncytial virus — Stock Photo
    Respiratory syncytial virus
    Chicken eggshell cross section — Stock Photo
    Chicken eggshell cross section
    Toddler girl in bathing suit using digital tablet at sofa — Stock Photo
    Toddler girl in bathing suit using digital tablet at sofa
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    Young woman with headphones and credit card online shopping at laptop on living room sofa — Stock Photo
    Young woman with headphones and credit card online shopping at laptop on living room sofa
    Cultured cancer cells — Stock Photo
    Cultured cancer cells
    Scanning electron micrograph of bacteria cultured from sample of human faeces. — Stock Photo
    Scanning electron micrograph of bacteria cultured from sample of human faeces.
    Colored scanning electron micrograph of shelled amoebae, single-celled protozoan organisms. — Stock Photo
    Colored scanning electron micrograph of shelled amoebae, single-celled protozoan organisms.
    Prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Prostate cancer cells, coloured scanning electron micrograph.
    Smiling casual businesswoman using digital tablet in bean bag chair — Stock Photo
    Smiling casual businesswoman using digital tablet in bean bag chair
    Businessman using digital tablet in office — Stock Photo
    Businessman using digital tablet in office
    Business people using laptop and digital tablet — Stock Photo
    Business people using laptop and digital tablet
    Man using digital tablet outdoors — Stock Photo
    Man using digital tablet outdoors
    Asparagus pollen grains — Stock Photo
    Asparagus pollen grains
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Human red blood cells — Stock Photo
    Human red blood cells
    Od shaped bacteria Tragelaphus — Stock Photo
    Od shaped bacteria Tragelaphus
    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 (SEM) of Cotton t-shirt collar with dirt, dead skin, etc. embedded in fibres. — Stock Photo
    Coloured scanning electron micrograph (SEM) of Cotton t-shirt collar with dirt, dead skin, etc. embedded in fibres.
    Boy playing electronic drums — Stock Photo
    Boy playing electronic drums
    Mosquito head anatomy — Stock Photo
    Mosquito head anatomy
    Father and daughters using electronic devices in living room at home — Stock Photo
    Father and daughters using electronic devices in living room at home