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    Human embryonic stem cells, digital illustration. — Stock Photo
    Human embryonic stem cells, digital illustration.
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Freshwater single diatom — Stock Photo
    Freshwater single diatom
    Close up profile girl student using microscope, conducting scientific experiment — Stock Photo
    Close up profile girl student using microscope, conducting scientific experiment
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Anemonefish eggs on seafloor — Stock Photo
    Anemonefish eggs on seafloor
    Illustration of red illuminated cancer cell. — Stock Photo
    Illustration of red illuminated cancer cell.
    Fat cells and supportive connective tissue — Stock Photo
    Fat cells and supportive connective tissue
    Illustration of human egg cell on blue background. — Stock Photo
    Illustration of human egg cell on blue background.
    Lymphoma cancer cell — Stock Photo
    Lymphoma cancer cell
    Texture on mushroom coral — Stock Photo
    Texture on mushroom coral
    Mouth of large coral polyp — Stock Photo
    Mouth of large coral polyp
    Common house dust mite — Stock Photo
    Common house dust mite
    Digital artwork of white blood cells attacking illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking illuminated cancer cell.
    Veterinarian examining dog ears in veterinary surgery — Stock Photo
    Veterinarian examining dog ears in veterinary surgery
    Chromodoris kuniei nudibranch in Beqa Lagoon — Stock Photo
    Chromodoris kuniei nudibranch in Beqa Lagoon
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom
    Closeup of magnified part of black and brown ant with glossy head — Stock Photo
    Closeup of magnified part of black and brown ant with glossy head
    Mycobacterium smegmatis bacteria — Stock Photo
    Mycobacterium smegmatis bacteria
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp.
    Puffball fungus spore — Stock Photo
    Puffball fungus spore