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    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible. — Stock Photo
    Pancreas tissue. Transmission electron micrograph (TEM) of part of the exocrine pancreas. Seen here are zymogen granules and cell nuclei. In the image the endoplasmic reticulum that fills the cytoplasm is clearly visible.
    Confocal light micrograph of mammalian fibroblast cells. — Stock Photo
    Confocal light micrograph of mammalian fibroblast cells.
    Caudate nucleus of the brain, computer illustration — Stock Photo
    Caudate nucleus of the brain, computer illustration
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Purple colored nerve cell on white background, digital illustration. — Stock Photo
    Purple colored nerve cell on white background, digital illustration.
    3d rendered abstract illustration of blue nerve cell. — Stock Photo
    3d rendered abstract illustration of blue nerve cell.
    Nerve cell structure in cross section on black background, digital illustration. — Stock Photo
    Nerve cell structure in cross section on black background, digital illustration.
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell. — Stock Photo
    Conceptual 3d illustration of artificial insemination, in vitro fertilization of human egg cell.
    Abstract colored illustration of human nerve cell on light background. — Stock Photo
    Abstract colored illustration of human nerve cell on light background.
    Human cell, computer illustration — Stock Photo
    Human cell, computer illustration
    Medical illustration of the midbrain transverse section — Stock Photo
    Medical illustration of the midbrain transverse section
    Layer of cells, computer illustration — Stock Photo
    Layer of cells, computer illustration
    Supramedial eye anatomy of muscle innervation with annotations — Stock Photo
    Supramedial eye anatomy of muscle innervation with annotations
    Colorful 3d illustration of cell division, cell membrane and splitting red nucleus. — Stock Photo
    Colorful 3d illustration of cell division, cell membrane and splitting red nucleus.
    Cell division process — Stock Photo
    Cell division process
    NGC5128 radio galaxy in constellation Centaurus — Stock Photo
    NGC5128 radio galaxy in constellation Centaurus
    Fractured pancreas tissue — Stock Photo
    Fractured pancreas tissue
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    Animal cell with mitochondria, digital illustration. — Stock Photo
    Animal cell with mitochondria, digital illustration.
    Stomach cancer cell, computer illustration — Stock Photo
    Stomach cancer cell, computer illustration
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Head anatomy revealing brain structure — Stock Photo
    Head anatomy revealing brain structure
    Illustration of human spinal vertebra on white background. — Stock Photo
    Illustration of human spinal vertebra on white background.
    Egg cell with nucleus, digital illustration. — Stock Photo
    Egg cell with nucleus, digital illustration.
    3d illustration of cross-section of hepatitis pathogen with DNA, cell nucleus and receptors. — Stock Photo
    3d illustration of cross-section of hepatitis pathogen with DNA, cell nucleus and receptors.
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Spiral galaxy NGC 3370, HST image. This galaxy is around 98 million light years from Earth. — Stock Photo
    Spiral galaxy NGC 3370, HST image. This galaxy is around 98 million light years from Earth.
    Abstract colored illustration of human nerve cell on light background. — Stock Photo
    Abstract colored illustration of human nerve cell on light background.
    Phase contrast light micrograph of Paramecium a ciliate protozoan. — Stock Photo
    Phase contrast light micrograph of Paramecium a ciliate protozoan.
    Abstract artwork of human nerve cell structure. — Stock Photo
    Abstract artwork of human nerve cell structure.
    Digital illustration of blue human nerve cell. — Stock Photo
    Digital illustration of blue human nerve cell.
    Human brain caudate nucleus — Stock Photo
    Human brain caudate nucleus
    3d illustration of cell division, cell membrane and splitting red nucleus. — Stock Photo
    3d illustration of cell division, cell membrane and splitting red nucleus.
    Stages of star life with labels — Stock Photo
    Stages of star life with labels
    Caudate nucleus, computer illustration. — Stock Photo
    Caudate nucleus, computer illustration.
    Colored illustration of green human nerve cell. — Stock Photo
    Colored illustration of green human nerve cell.
    Abstract animal cells, digital illustration. — Stock Photo
    Abstract animal cells, digital illustration.
    Illustration of human spinal vertebra on white background. — Stock Photo
    Illustration of human spinal vertebra on white background.
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    Structure of neutrophil white blood cell, digital illustration. — Stock Photo
    Structure of neutrophil white blood cell, digital illustration.
    Caudate nucleus of the brain, computer illustration — Stock Photo
    Caudate nucleus of the brain, computer illustration
    Digital artwork showing inclusion composed of group of chlamydia reticulate bodies of Chlamydia trachomatis bacteria. — Stock Photo
    Digital artwork showing inclusion composed of group of chlamydia reticulate bodies of Chlamydia trachomatis bacteria.
    Illustration of transparent cancer cell on blue background. — Stock Photo
    Illustration of transparent cancer cell on blue background.
    Digital illustration of human nerve cell with dendrites. — Stock Photo
    Digital illustration of human nerve cell with dendrites.
    Medical illustration of human cell structure on white background. — Stock Photo
    Medical illustration of human cell structure on white background.
    Blue colored nerve cell on white background, digital illustration. — Stock Photo
    Blue colored nerve cell on white background, digital illustration.
    Animal cell during cytokinesis (cell division), illustration. — Stock Photo
    Animal cell during cytokinesis (cell division), illustration.
    Digital illustration of human nerve cell with dendrites. — Stock Photo
    Digital illustration of human nerve cell with dendrites.
    Digital illustration of human cells on blue background. — Stock Photo
    Digital illustration of human cells on blue background.
    Blue colored nerve cell on dark background, digital illustration. — Stock Photo
    Blue colored nerve cell on dark background, digital illustration.
    IC342 spiral galaxy in constellation Camelopardalis — Stock Photo
    IC342 spiral galaxy in constellation Camelopardalis
    Illustration of blue cell membrane on white background. — Stock Photo
    Illustration of blue cell membrane on white background.
    Illustration of 2 cell stage egg on black background. — Stock Photo
    Illustration of 2 cell stage egg on black background.
    Section through the cerebellum in the brain — Stock Photo
    Section through the cerebellum in the brain
    Illustration of fertilized human egg cell. — Stock Photo
    Illustration of fertilized human egg cell.
    Illustration of pink human egg cell on black background. — Stock Photo
    Illustration of pink human egg cell on black background.
    Fallopian tube, TEM — Stock Photo
    Fallopian tube, TEM
    Digital illustration of human nerve cell with dendrites. — Stock Photo
    Digital illustration of human nerve cell with dendrites.
    Digital illustration showing inclusion composed of chlamydia reticulate bodies near nucleus of cell. — Stock Photo
    Digital illustration showing inclusion composed of chlamydia reticulate bodies near nucleus of cell.