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    Human red blood cells — Stock Photo
    Human red blood cells
    Coloured scanning electron micrograph (SEM) of Coal from the ship Titanic. — Stock Photo
    Coloured scanning electron micrograph (SEM) of Coal from the ship Titanic.
    Businessman using digital tablet in restaurant — Stock Photo
    Businessman using digital tablet in restaurant
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    Scanning electron micrograph of faecal bacteria cultured from sample of human faeces. — Stock Photo
    Scanning electron micrograph of faecal bacteria cultured from sample of human faeces.
    Businesswoman standing in sunny office — Stock Photo
    Businesswoman standing in sunny office
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    Colored scanning electron micrograph of scales from silverfish insect living fossil. — Stock Photo
    Colored scanning electron micrograph of scales from silverfish insect living fossil.
    Candida albicans infected medical catheter — Stock Photo
    Candida albicans infected medical catheter
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    Radiolarians amoeboid protozoa — Stock Photo
    Radiolarians amoeboid protozoa
    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)
    Male electrician using screwdriver, working at electric panel — Stock Photo
    Male electrician using screwdriver, working at electric panel
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    Casual businesswoman with headphones using digital tablet in office — Stock Photo
    Casual businesswoman with headphones using digital tablet in office
    Plaque-forming bacteria — Stock Photo
    Plaque-forming bacteria
    House dust mites — Stock Photo
    House dust mites
    Enthusiastic friends taking selfie with digital tablet on bus — Stock Photo
    Enthusiastic friends taking selfie with digital tablet on bus
    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
    Surface of a fallopian tube — Stock Photo
    Surface of a fallopian tube
    Abstract coloured scanning electron micrograph of crystalline surface of fractured gallstone. — Stock Photo
    Abstract coloured scanning electron micrograph of crystalline surface of fractured gallstone.
    Kidney glomeruli, coloured scanning electron micrograph (SEM). — Stock Photo
    Kidney glomeruli, coloured scanning electron micrograph (SEM).
    Pre-adolescent blogger girl soldering circuit board of electric toy car in office. — Stock Photo
    Pre-adolescent blogger girl soldering circuit board of electric toy car in office.
    Osteoblasts. Colored transmission electron micrograph (TEM) of osteoblasts, bone-producing cells (purple and pink). They contain rough endoplasmic reticulum (RER), which produces, modifies and transports proteins, and nucleus — Stock Photo
    Osteoblasts. Colored transmission electron micrograph (TEM) of osteoblasts, bone-producing cells (purple and pink). They contain rough endoplasmic reticulum (RER), which produces, modifies and transports proteins, and nucleus
    Female electrical engineer soldering circuit board in office. — Stock Photo
    Female electrical engineer soldering circuit board in office.
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Cropped shot of young pregnant woman standing on scales, selective focus — Stock Photo
    Cropped shot of young pregnant woman standing on scales, selective focus
    Coloured scanning electron micrograph intricately structured microscopic brochosomes granules secreted by leafhopper. — Stock Photo
    Coloured scanning electron micrograph intricately structured microscopic brochosomes granules secreted by leafhopper.
    Student in wheelchair studying furnace electronic control system in HVAC classroom — Stock Photo
    Student in wheelchair studying furnace electronic control system in HVAC classroom
    Passion flower pollen — Stock Photo
    Passion flower pollen
    Colorectal cancer cell dividing — Stock Photo
    Colorectal cancer cell dividing
    Coiled proboscis of a moth — Stock Photo
    Coiled proboscis of a moth
    Woman practicing yoga with laptop computer at her home — Stock Photo
    Woman practicing yoga with laptop computer at her home
    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
    Pacemaker in heart disease — Stock Photo
    Pacemaker in heart disease
    Atmospheric view of silhouette of crowd at concert — Stock Photo
    Atmospheric view of silhouette of crowd at concert
    Puffball fungus spores — Stock Photo
    Puffball fungus spores
    Pollen grains from a bellflower — Stock Photo
    Pollen grains from a bellflower
    Caucasian man using digital tablet outdoors — Stock Photo
    Caucasian man using digital tablet outdoors
    Portrait smiling female engineer assembling circuit board in workshop — Stock Photo
    Portrait smiling female engineer assembling circuit board in workshop
    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
    Man using digital tablet outdoors — Stock Photo
    Man using digital tablet outdoors
    Escherichia coli on the surface of human skin — Stock Photo
    Escherichia coli on the surface of human skin
    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.
    Coloured scanning electron micrograph (SEM) of an anther (male reproductive part) from a bay tree (Laurus nobilis) flower. — Stock Photo
    Coloured scanning electron micrograph (SEM) of an anther (male reproductive part) from a bay tree (Laurus nobilis) flower.
    Male sex cell — Stock Photo
    Male sex cell
    Woman in bathrobe drinking coffee and using digital tablet at poolside — Stock Photo
    Woman in bathrobe drinking coffee and using digital tablet at poolside
    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 (blue) 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 (blue) are seen in the heads. Zebrafish eggs are transparent
    Fractured flexor tendon — Stock Photo
    Fractured flexor tendon
    Colored scanning electron micrograph of osteosarcoma bone cancer cell. — Stock Photo
    Colored scanning electron micrograph of osteosarcoma bone cancer cell.
    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
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    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.
    Fractured myelinated nerve fibres — Stock Photo
    Fractured myelinated nerve fibres
    Coloured scanning electron micrograph (SEM) of Asbestos fiberschrysotile type. — Stock Photo
    Coloured scanning electron micrograph (SEM) of Asbestos fiberschrysotile type.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Woman working using digital tablet at kitchen counter — Stock Photo
    Woman working using digital tablet at kitchen counter
    Red blood cells — Stock Photo
    Red blood cells
    Travelers with suitcases walking in airport concourse — Stock Photo
    Travelers with suitcases walking in airport concourse