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    Lysosome fusing with autophagosome — Stock Photo
    Lysosome fusing with autophagosome
    Intestinal villi projections — Stock Photo
    Intestinal villi projections
    Animal cells with mitochondria, digital illustration. — Stock Photo
    Animal cells with mitochondria, digital illustration.
    Red blood cells — Stock Photo
    Red blood cells
    Human white blood cell — Stock Photo
    Human white blood cell
    Light micrograph of a section through the surface of a tonsil showing the stratified squamous epithelium (pink) and underlying lymphoid tissue. — Stock Photo
    Light micrograph of a section through the surface of a tonsil showing the stratified squamous epithelium (pink) and underlying lymphoid tissue.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei. — Stock Photo
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei.
    Structure of neutrophil white blood cell, digital illustration. — Stock Photo
    Structure of neutrophil white blood cell, digital illustration.
    Animal cells with mitochondria, digital illustration. — Stock Photo
    Animal cells with mitochondria, digital illustration.
    Ovarian cancer cells, coloured scanning electron micrograph. — Stock Photo
    Ovarian cancer cells, coloured scanning electron micrograph.
    Testicular cancer or teratoma — Stock Photo
    Testicular cancer or teratoma
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets. — Stock Photo
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets.
    Medical illustration of human cell structure on white background. — Stock Photo
    Medical illustration of human cell structure on white background.
    Bone marrow cell — Stock Photo
    Bone marrow cell
    Human white blood cell — Stock Photo
    Human white blood cell
    Structure of neutrophil white blood cell, digital illustration. — Stock Photo
    Structure of neutrophil white blood cell, digital illustration.
    Structure of animal cell — Stock Photo
    Structure of animal cell
    White blood cell engulfing bacteria — Stock Photo
    White blood cell engulfing bacteria
    Coloured scanning electron micrograph of breast cancer cells. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cells.
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Visual rendering of Animal cells — Stock Photo
    Visual rendering of Animal cells
    Normal human red blood cell — Stock Photo
    Normal human red blood cell
    Pars distalis of the pituitary gland — Stock Photo
    Pars distalis of the pituitary gland
    Red blood cells — Stock Photo
    Red blood cells
    Zygote development 24-36 hours after fertilization — Stock Photo
    Zygote development 24-36 hours after fertilization
    Cancer cells and white blood cells — Stock Photo
    Cancer cells and white blood cells
    Nerve cell structure — Stock Photo
    Nerve cell structure
    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.
    Fatcells structure and anatomy — Stock Photo
    Fatcells structure and anatomy
    Microscopic view of colorful tumor cells — Stock Photo
    Microscopic view of colorful tumor cells
    Structure of neutrophil white blood cell, digital illustration. — Stock Photo
    Structure of neutrophil white blood cell, digital illustration.
    Digital illustration of structure of bilayer with phospholipids plasma membrane enclosing cells. — Stock Photo
    Digital illustration of structure of bilayer with phospholipids plasma membrane enclosing cells.
    Cross-section through a fallopian tube — Stock Photo
    Cross-section through a fallopian tube
    Chromatin in cell nucleus, illustration. Chromatin is the condensed form of DNA (deoxyribonucleic acid) and proteins found in the cell nucleus. — Stock Photo
    Chromatin in cell nucleus, illustration. Chromatin is the condensed form of DNA (deoxyribonucleic acid) and proteins found in the cell nucleus.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Plasma cell, computer illustration. Plasma cells, which are found in the blood and lymph, are mature B lymphocytes (white blood cells) that produce and secrete antibodies during an immune response. — Stock Photo
    Plasma cell, computer illustration. Plasma cells, which are found in the blood and lymph, are mature B lymphocytes (white blood cells) that produce and secrete antibodies during an immune response.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration.
    Dividing cancerous cells — Stock Photo
    Dividing cancerous cells
    Cell with pseudopodia — Stock Photo
    Cell with pseudopodia
    Destruction of cancer cell — Stock Photo
    Destruction of cancer cell
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Amyloid precursor protein of cell membrane, digital illustration. — Stock Photo
    Amyloid precursor protein of cell membrane, digital illustration.
    Colored scanning electron micrograph of human mesenchymal stem cell. — Stock Photo
    Colored scanning electron micrograph of human mesenchymal stem cell.
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Lung cancer cells — Stock Photo
    Lung cancer cells
    Coloured scanning electron micrograph (SEM) of a tumour cell, showing pseudopodia protrusions (bottom left and right), a prominent feature of actively motile cells. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a tumour cell, showing pseudopodia protrusions (bottom left and right), a prominent feature of actively motile cells.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Medical illustration of human cell structure on black background. — Stock Photo
    Medical illustration of human cell structure on black background.
    Intestinal villi projections — Stock Photo
    Intestinal villi projections
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Fatcells structure and anatomy — Stock Photo
    Fatcells structure and anatomy
    Fractured pancreas tissue — Stock Photo
    Fractured pancreas tissue
    Apoptosis of neuron cell — Stock Photo
    Apoptosis of neuron cell