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    Female airport staff using mobile phone to scan the passport at airport terminal — Stock Photo
    Female airport staff using mobile phone to scan the passport at airport terminal
    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Quartz crystals structure — Stock Photo
    Quartz crystals structure
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Angel trumpets pollen grain — Stock Photo
    Angel trumpets pollen grain
    Scanning electron micrograph (SEM) of sarcoma cells in culture. — Stock Photo
    Scanning electron micrograph (SEM) of sarcoma cells in culture.
    Clothes moth wing scales — Stock Photo
    Clothes moth wing scales
    Blue colored dust mite, digital illustration. — Stock Photo
    Blue colored dust mite, digital illustration.
    Marjoram (Origanum vilgare) leaf surface, coloured scanning electron micrograph (SEM). — Stock Photo
    Marjoram (Origanum vilgare) leaf surface, coloured scanning electron micrograph (SEM).
    Fibroblast cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Fibroblast cell, coloured scanning electron micrograph (SEM).
    Stagnant water bacteria — Stock Photo
    Stagnant water bacteria
    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.
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Scanning electron micrograph of bacterial culture from sputum. — Stock Photo
    Scanning electron micrograph of bacterial culture from sputum.
    Colored scanning electron micrograph of Streptococcus mutans anaerobic bacteria in normal bacteria flora of mouth. — Stock Photo
    Colored scanning electron micrograph of Streptococcus mutans anaerobic bacteria in normal bacteria flora of mouth.
    Colored scanning electron micrograph of breast cancer cell. — Stock Photo
    Colored scanning electron micrograph of breast cancer cell.
    Airport security officer using a metal detector to check a bag in airport — Stock Photo
    Airport security officer using a metal detector to check a bag in airport
    Male sex cell — Stock Photo
    Male sex cell
    Flowering currant pollen — Stock Photo
    Flowering currant pollen
    Female radiologist studying CT scans on monitors. — Stock Photo
    Female radiologist studying CT scans on monitors.
    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.
    Leech, coloured scanning electron micrograph (SEM). — Stock Photo
    Leech, coloured scanning electron micrograph (SEM).
    Fungal cells with sporangia and spores — Stock Photo
    Fungal cells with sporangia and spores
    External mineralised structures of coccolithophores — Stock Photo
    External mineralised structures of coccolithophores
    Coloured scanning electron micrograph of tardigrade water bear. — Stock Photo
    Coloured scanning electron micrograph of tardigrade water bear.
    Mixed oral bacteria — Stock Photo
    Mixed oral bacteria
    Face of woman undergoing examination in skin clinic. — Stock Photo
    Face of woman undergoing examination in skin clinic.
    Healthy human brain — Stock Photo
    Healthy human brain
    Fungal cells showing sporangium — Stock Photo
    Fungal cells showing sporangium
    Fly head anatomy — Stock Photo
    Fly head anatomy
    Woodland skipper butterfly compound eye — Stock Photo
    Woodland skipper butterfly compound eye
    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
    Worker scanning boxes in warehouse — Stock Photo
    Worker scanning boxes in warehouse
    Traveller using self service check-in machine at airport — Stock Photo
    Traveller using self service check-in machine at airport
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Earthworm coloured scanning electron micrograph — Stock Photo
    Earthworm coloured scanning electron micrograph
    Dividing prostate cancer cells, coloured scanning electron micrograph. — Stock Photo
    Dividing prostate cancer cells, coloured scanning electron micrograph.
    Woman undergoing scan examination in skin clinic. — Stock Photo
    Woman undergoing scan examination in skin clinic.
    Patient entering mri scanning machine at hospital — Stock Photo
    Patient entering mri scanning machine at hospital
    Facial recognition, computer illustration — Stock Photo
    Facial recognition, computer illustration
    Fat cells and supportive connective tissue — Stock Photo
    Fat cells and supportive connective tissue
    Fungal cells with sporangia and spores — Stock Photo
    Fungal cells with sporangia and spores
    Chinese hibiscus pollen — Stock Photo
    Chinese hibiscus pollen
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans. — Stock Photo
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans.
    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 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.
    Skeletal muscle fibres — Stock Photo
    Skeletal muscle fibres
    Healthy human skin — Stock Photo
    Healthy human skin
    House dust mites — Stock Photo
    House dust mites
    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
    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.
    Coloured scanning electron micrograph (SEM) of rods (yellow) and cones (green) in the retina of the eye. — Stock Photo
    Coloured scanning electron micrograph (SEM) of rods (yellow) and cones (green) in the retina of the eye.
    Marine planktonic unicellular alga — Stock Photo
    Marine planktonic unicellular alga
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    Fossilised fragment of a coccolithotrope skeleton — Stock Photo
    Fossilised fragment of a coccolithotrope skeleton
    Orchid (Phalaenopsis sp.) petal, coloured scanning electron micrograph (SEM). — Stock Photo
    Orchid (Phalaenopsis sp.) petal, coloured scanning electron micrograph (SEM).
    Radiologist recording results of CT scanning. — Stock Photo
    Radiologist recording results of CT scanning.
    Security guard frisking a passenger at airport terminal — Stock Photo
    Security guard frisking a passenger at airport terminal
    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
    Human red blood cells and platelets — Stock Photo
    Human red blood cells and platelets