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    3d illustration of a Golgi apparatus, or body, within a eukaryotic cell. Golgi are membrane-bound organelles that modify and package proteins. — Stock Photo
    3d illustration of a Golgi apparatus, or body, within a eukaryotic cell. Golgi are membrane-bound organelles that modify and package proteins.
    Medical illustration of human cell structure on dark background. — Stock Photo
    Medical illustration of human cell structure on dark background.
    Magnified digital illustration of neutrophil cell. — Stock Photo
    Magnified digital illustration of neutrophil cell.
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Medical illustration of human cell structure on black background. — Stock Photo
    Medical illustration of human cell structure on black background.
    Animal Cells in culture — Stock Photo
    Animal Cells in culture
    Structure of neutrophil white blood cell, digital illustration. — Stock Photo
    Structure of neutrophil white blood cell, digital illustration.
    Neutrophil white blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cells, digital illustration.
    Transparent cells on white background, digital illustration. — Stock Photo
    Transparent cells on white background, digital illustration.
    Structure of animal cell — Stock Photo
    Structure of animal cell
    Magnified digital illustration of megakaryocyte cell. — Stock Photo
    Magnified digital illustration of megakaryocyte cell.
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla). — Stock Photo
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla).
    Structure of cellular organelles — Stock Photo
    Structure of cellular organelles
    3d illustration of internal structure of human cell. — Stock Photo
    3d illustration of internal structure of human cell.
    Bone marrow cellular structure — Stock Photo
    Bone marrow cellular structure
    Single abstract bacterium on black background, computer illustration. — Stock Photo
    Single abstract bacterium on black background, computer illustration.
    Structure of cellular organelles — Stock Photo
    Structure of cellular organelles
    Medical illustration of human cell structure on dark background. — Stock Photo
    Medical illustration of human cell structure on dark background.
    Leaf epidermis, light micrograph. Leaf epidermis has small pores, called stomata, which open up for photosynthetic gas exchange and transpiration. — Stock Photo
    Leaf epidermis, light micrograph. Leaf epidermis has small pores, called stomata, which open up for photosynthetic gas exchange and transpiration.
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration. — Stock Photo
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Pink molecular model of DNA binding to anti-cancer protein p53. — Stock Photo
    Pink molecular model of DNA binding to anti-cancer protein p53.
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    Human brain cells — Stock Photo
    Human brain cells
    Molecular model of pink mdm2 protein binding to anti-cancer protein p53. — Stock Photo
    Molecular model of pink mdm2 protein binding to anti-cancer protein p53.
    Intestinal villi projections — Stock Photo
    Intestinal villi projections
    Human white blood cell — Stock Photo
    Human white blood cell
    3d illustration of a ribosome (purple), the site of protein synthesis, producing a polypeptide chain (blue). This process is known as translation. — Stock Photo
    3d illustration of a ribosome (purple), the site of protein synthesis, producing a polypeptide chain (blue). This process is known as translation.
    3d illustration of aligned cells with red cell in middle. — Stock Photo
    3d illustration of aligned cells with red cell in middle.
    Structure of animal cell — Stock Photo
    Structure of animal cell
    Animal cell structure — Stock Photo
    Animal cell structure
    Magnified digital illustration of water bear. — Stock Photo
    Magnified digital illustration of water bear.
    Illustration of process leading to formation of amyloid protein plaques on neurons in Alzheimer disease. — Stock Photo
    Illustration of process leading to formation of amyloid protein plaques on neurons in Alzheimer disease.
    Cell membrane, illustration, colorful image — Stock Photo
    Cell membrane, illustration, colorful image
    LDL receptors on cell membrane, illustration — Stock Photo
    LDL receptors on cell membrane, illustration
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Genetic engineering, conceptual illustration. — Stock Photo
    Genetic engineering, conceptual illustration.
    Structure of trachea, light micrograph. — Stock Photo
    Structure of trachea, light micrograph.
    3d illustration of green cells pattern with red nuclei. — Stock Photo
    3d illustration of green cells pattern with red nuclei.
    Magnified digital illustration of mast cell. — Stock Photo
    Magnified digital illustration of mast cell.
    Osteoclast cross-section, illustration. Osteoclasts are large, multinucleated bone cells with a ruffled border and a high number of vesicles and vacuoles. They are essential for the maintenance and repair of bones — Stock Photo
    Osteoclast cross-section, illustration. Osteoclasts are large, multinucleated bone cells with a ruffled border and a high number of vesicles and vacuoles. They are essential for the maintenance and repair of bones
    Structure of neutrophil white blood cell, digital illustration. — Stock Photo
    Structure of neutrophil white blood cell, digital illustration.
    Section through the olfactory epithelium — Stock Photo
    Section through the olfactory epithelium
    Gall bladder lining — Stock Photo
    Gall bladder lining
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration.
    Neutrophil white blood cell in blood, digital artwork. — Stock Photo
    Neutrophil white blood cell in blood, digital artwork.
    Light micrograph (LM) of a section through the fingertip. — Stock Photo
    Light micrograph (LM) of a section through the fingertip.
    Layer of cells, computer illustration — Stock Photo
    Layer of cells, computer illustration
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Illustration of dendritic cell interacting with T-cells on black background. — Stock Photo
    Illustration of dendritic cell interacting with T-cells on black background.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Iris stem cellular structure — Stock Photo
    Iris stem cellular structure
    Coloured scanning electron micrograph (SEM) of a fractured mucous membrane of the trachea (wind pipe), showing the epithelium and underlying connective tissue. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a fractured mucous membrane of the trachea (wind pipe), showing the epithelium and underlying connective tissue.
    Transparent cells on white background, digital illustration. — Stock Photo
    Transparent cells on white background, digital illustration.
    Transitional epithelium in urinary bladder, digital illustration. — Stock Photo
    Transitional epithelium in urinary bladder, digital illustration.
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Illustration of blue cell membrane on white background. — Stock Photo
    Illustration of blue cell membrane on white background.
    Digital artwork of round blue cells on plain background. — Stock Photo
    Digital artwork of round blue cells on plain background.