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    Sensory palps of Rabbit flea — Stock Photo
    Sensory palps of Rabbit flea
    Colored scanning electron micrograph of microstructures formed on nickel surface. — Stock Photo
    Colored scanning electron micrograph of microstructures formed on nickel surface.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Human eyelash mites — Stock Photo
    Human eyelash mites
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    House dust mites — Stock Photo
    House dust mites
    Male sex cell — Stock Photo
    Male sex cell
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Fly head anatomy — Stock Photo
    Fly head anatomy
    Tendon showing bundles of collagen fibres — Stock Photo
    Tendon showing bundles of collagen fibres
    Human blood cells — Stock Photo
    Human blood cells
    Red blood cells and platelets — Stock Photo
    Red blood cells and platelets
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.
    Colored scanning electron micrograph of starch grains in seed of legume. — Stock Photo
    Colored scanning electron micrograph of starch grains in seed of legume.
    Morphology of Activated platelets — Stock Photo
    Morphology of Activated platelets
    Epithelial lining of Fallopian tube — Stock Photo
    Epithelial lining of Fallopian tube
    Coloured scanning electron micrograph (SEM) of a sectioned artery containing red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a sectioned artery containing red blood cells (erythrocytes, red).
    Colored scanning electron micrograph of human mesenchymal stem cell. — Stock Photo
    Colored scanning electron micrograph of human mesenchymal stem cell.
    Water flea (Polyphemus pediculus), coloured scanning electron micrograph (SEM). — Stock Photo
    Water flea (Polyphemus pediculus), coloured scanning electron micrograph (SEM).
    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
    Embryonic stem cells — Stock Photo
    Embryonic stem cells
    Coloured scanning electron micrograph (SEM) of the interior of bone from a bird skull. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the interior of bone from a bird skull.
    Scorpion fly foot — Stock Photo
    Scorpion fly foot
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Giardia lamblia, a protozoan (cyst stage) found in water contaminated by animal faeces, coloured scanning electron micrograph (SEM). — Stock Photo
    Giardia lamblia, a protozoan (cyst stage) found in water contaminated by animal faeces, coloured scanning electron micrograph (SEM).
    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.
    Coloured scanning electron micrograph of tardigrade water bear. — Stock Photo
    Coloured scanning electron micrograph of tardigrade water bear.
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell (test) of a Globigerina sp. planktonic foraminiferan.
    Shell of a radiolarian — Stock Photo
    Shell of a radiolarian
    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.
    Coloured scanning electron micrograph of bacteria from culture of breast milk. — Stock Photo
    Coloured scanning electron micrograph of bacteria from culture of breast milk.
    Salmonella typhimurium bacteria — Stock Photo
    Salmonella typhimurium bacteria
    Dog tapeworm head — Stock Photo
    Dog tapeworm head
    Alveolar macrophage phagocytosis of E. coli — Stock Photo
    Alveolar macrophage phagocytosis of E. coli
    Scanning electron micrograph (SEM) of sarcoma cells in culture. — Stock Photo
    Scanning electron micrograph (SEM) of sarcoma cells in culture.
    Collagen bundles from the delicate connective tissue — Stock Photo
    Collagen bundles from the delicate connective tissue
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    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
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    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
    Non-activated blood cell fragments platelets, coloured scanning electron micrograph. — Stock Photo
    Non-activated blood cell fragments platelets, coloured scanning electron micrograph.
    Cultured cancer cells — Stock Photo
    Cultured cancer cells
    Human hair Caucasian brunette, coloured scanning electron micrograph. — Stock Photo
    Human hair Caucasian brunette, coloured scanning electron micrograph.
    Dead bluebottle fly — Stock Photo
    Dead bluebottle fly
    Components of house dust — Stock Photo
    Components of house dust
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Human red blood cells and platelets — Stock Photo
    Human red blood cells and platelets
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death. — Stock Photo
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death.
    Streptomyces coelicoflavus bacteria — Stock Photo
    Streptomyces coelicoflavus bacteria
    Skin cancer cell — Stock Photo
    Skin cancer cell
    Alveolar macrophage phagocytosis of E. coli — Stock Photo
    Alveolar macrophage phagocytosis of E. coli
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Cat flea head — Stock Photo
    Cat flea head
    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.