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    View of Fetus at 4 weeks — Stock Photo
    View of Fetus at 4 weeks
    Illustration of extrasolar planet with moon orbiting fictional star. — Stock Photo
    Illustration of extrasolar planet with moon orbiting fictional star.
    Skeletal system of infant — Stock Photo
    Skeletal system of infant
    Yellow rod-shaped Citrobacter bacteria, digital illustration. — Stock Photo
    Yellow rod-shaped Citrobacter bacteria, digital illustration.
    Close-up of pipetting blood sample into microcentrifuge tubes. — Stock Photo
    Close-up of pipetting blood sample into microcentrifuge tubes.
    Top view of unrecognizable person hands holding tray with pile of various dental gypsum models of jaws in lab — Stock Photo
    Top view of unrecognizable person hands holding tray with pile of various dental gypsum models of jaws in lab
    Dead bluebottle fly — Stock Photo
    Dead bluebottle fly
    Immature parasitic trematode — Stock Photo
    Immature parasitic trematode
    Human embryonic stem cell, digital illustration. — Stock Photo
    Human embryonic stem cell, digital illustration.
    View of Fetus at 6 weeks — Stock Photo
    View of Fetus at 6 weeks
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Green grass growing in plastic cups on laboratory table with microscope for agriculture research. — Stock Photo
    Green grass growing in plastic cups on laboratory table with microscope for agriculture research.
    View of Fetus at 40 weeks — Stock Photo
    View of Fetus at 40 weeks
    Multi-colored rod-shaped soil bacteria, conceptual illustration. — Stock Photo
    Multi-colored rod-shaped soil bacteria, conceptual illustration.
    Localization of pain in shoulder joint — Stock Photo
    Localization of pain in shoulder joint
    Set of 46 human chromosomes on black background. — Stock Photo
    Set of 46 human chromosomes on black background.
    Crop unrecognizable scientist with plant in plastic tube on yellow background in studio — Stock Photo
    Crop unrecognizable scientist with plant in plastic tube on yellow background in studio
    High angle view of teenage girl practicing experiment in lab — Stock Photo
    High angle view of teenage girl practicing experiment in lab
    Close-up of 3d rendering microscopic blue bacteria. — Stock Photo
    Close-up of 3d rendering microscopic blue bacteria.
    Focus of inflammation localized in hip joint — Stock Photo
    Focus of inflammation localized in hip joint
    Villi from the lining of the jejunum — Stock Photo
    Villi from the lining of the jejunum
    Pipette adding a solution to a sample — Stock Photo
    Pipette adding a solution to a sample
    Sprouting peas in test tubes on white background. — Stock Photo
    Sprouting peas in test tubes on white background.
    Lysosome fusing with autophagosome — Stock Photo
    Lysosome fusing with autophagosome
    Male teacher helping girl student at microscope in laboratory classroom — Stock Photo
    Male teacher helping girl student at microscope in laboratory classroom
    Close-up of worker examining glass product in glass factory — Stock Photo
    Close-up of worker examining glass product in glass factory
    Normal red blood cells — Stock Photo
    Normal red blood cells
    The heart of constellation Sagittarius, preserved under sky light pollution — Stock Photo
    The heart of constellation Sagittarius, preserved under sky light pollution
    High angle view of scientific weight scale on table in lab — Stock Photo
    High angle view of scientific weight scale on table in lab
    Triangulum Galaxyin constellation Triangulum, preserved under sky light pollution — Stock Photo
    Triangulum Galaxyin constellation Triangulum, preserved under sky light pollution
    Bacteria infecting organism — Stock Photo
    Bacteria infecting organism
    Diatoms single-celled algae — Stock Photo
    Diatoms single-celled algae
    Alternaria fungi on black background, digital illustration. — Stock Photo
    Alternaria fungi on black background, digital illustration.
    Portrait serious female college student in science laboratory classroom — Stock Photo
    Portrait serious female college student in science laboratory classroom
    Empty white anatomical heart model 3D illustration isolated on white background. — Stock Photo
    Empty white anatomical heart model 3D illustration isolated on white background.
    Illustration of yellow abscesses on kidney and close-up of Escherichia bacteria. — Stock Photo
    Illustration of yellow abscesses on kidney and close-up of Escherichia bacteria.
    3d illustration of cryopreserved foetus frozen into ice cube. — Stock Photo
    3d illustration of cryopreserved foetus frozen into ice cube.
    View of fetus at 30 weeks — Stock Photo
    View of fetus at 30 weeks
    Scientist in white uniform putting on protective mask — Stock Photo
    Scientist in white uniform putting on protective mask
    Dust mite consuming skin flake — Stock Photo
    Dust mite consuming skin flake
    Enterococcus bacteria colony — Stock Photo
    Enterococcus bacteria colony
    Close-up 3D illustration of Y chromosome on white background. — Stock Photo
    Close-up 3D illustration of Y chromosome on white background.
    Close-up of scientist doing experiment in lab — Stock Photo
    Close-up of scientist doing experiment in lab
    3d illustration of transparent cells with nuclei on yellow background. — Stock Photo
    3d illustration of transparent cells with nuclei on yellow background.
    T-cell receptor-MHC-antigen complexes — Stock Photo
    T-cell receptor-MHC-antigen complexes
    Foreign body in finger — Stock Photo
    Foreign body in finger
    Diatom eukaryotic algae — Stock Photo
    Diatom eukaryotic algae
    Section through the nasal mucosa — Stock Photo
    Section through the nasal mucosa
    Close-up of green chemical sample in glass phial. — Stock Photo
    Close-up of green chemical sample in glass phial.
    Coloured X-ray of the chest of a 52 year old female patient with metastatic (secondary) lung cancer (yellow). — Stock Photo
    Coloured X-ray of the chest of a 52 year old female patient with metastatic (secondary) lung cancer (yellow).
    Male scientist placing chemical tube glass bottle on a machine in laboratory — Stock Photo
    Male scientist placing chemical tube glass bottle on a machine in laboratory
    Liquids of different colors in sample vials in laboratory. — Stock Photo
    Liquids of different colors in sample vials in laboratory.
    Madagascar hissing cockroach — Stock Photo
    Madagascar hissing cockroach
    Parasitic tick biting skin — Stock Photo
    Parasitic tick biting skin
    Colored digital artwork of cancer cell. — Stock Photo
    Colored digital artwork of cancer cell.
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Fly head anatomy — Stock Photo
    Fly head anatomy
    Close-up of hands of scientist pipetting sample from culture in Petri dish. — Stock Photo
    Close-up of hands of scientist pipetting sample from culture in Petri dish.
    Puffball fungus spore — Stock Photo
    Puffball fungus spore
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria