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    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, 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.
    Mitochondria cross-section, illustration. Mitochondria are organelles found in the cytoplasm of eukaryotic cells. They oxidise sugars and fats to produce energy in a process called cellular respiration — Stock Photo
    Mitochondria cross-section, illustration. Mitochondria are organelles found in the cytoplasm of eukaryotic cells. They oxidise sugars and fats to produce energy in a process called cellular respiration
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Cilia covering the epithelial lining of the nasopharyx — Stock Photo
    Cilia covering the epithelial lining of the nasopharyx
    Healthy Red blood cells — Stock Photo
    Healthy Red blood cells
    Animal Cells in culture — Stock Photo
    Animal Cells in culture
    Artwork of plasma cells — Stock Photo
    Artwork of plasma cells
    Microscopic view of colorful tumor cells — Stock Photo
    Microscopic view of colorful tumor cells
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Illustration of sphere vesicles transporting along microtubule by kinesin proteins. — Stock Photo
    Illustration of sphere vesicles transporting along microtubule by kinesin proteins.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus — Stock Photo
    T lymphocyte (orange) attached to a cancer cell (blue), illustration. T lymphocytes are a type of white blood cell which matures in the thymus
    Visual rendering of Animal cells — Stock Photo
    Visual rendering of Animal cells
    White blood cell engulfing bacteria — Stock Photo
    White blood cell engulfing bacteria
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Activated human macrophage — Stock Photo
    Activated human macrophage
    Cancer cells dividing — Stock Photo
    Cancer cells dividing
    Nerve cells and axon structures — Stock Photo
    Nerve cells and axon structures
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Human oesophagus wall — Stock Photo
    Human oesophagus wall
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Human brain cells — Stock Photo
    Human brain cells
    Visual rendering of Human cells — Stock Photo
    Visual rendering of Human cells
    Nerve cells and axon connections — Stock Photo
    Nerve cells and axon connections
    Red blood cells in the bloodstream — Stock Photo
    Red blood cells in the bloodstream
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    Eosinophilia blood smear with numerous eosinophils, digital illustration. — Stock Photo
    Eosinophilia blood smear with numerous eosinophils, digital illustration.
    Dividing stem cells — Stock Photo
    Dividing stem cells
    Human sperm cells — Stock Photo
    Human sperm cells
    Conceptual image of a neuron on black background — Stock Photo
    Conceptual image of a neuron on black background
    Normal human red blood cell — Stock Photo
    Normal human red blood cell
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Nerve cells and axon connections — Stock Photo
    Nerve cells and axon connections
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer illustration
    Cancer cells dividing — Stock Photo
    Cancer cells dividing
    Digital artwork of white blood cells attacking illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking illuminated cancer cell.
    Nerve cells and axon connections — Stock Photo
    Nerve cells and axon connections
    Cross-section through a fallopian tube — Stock Photo
    Cross-section through a fallopian tube
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Medical illustration of human cell structure on black background. — Stock Photo
    Medical illustration of human cell structure on black background.
    Paranasal sinus epithelium — Stock Photo
    Paranasal sinus epithelium
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Duct lined with pseudostratified epithelium — Stock Photo
    Duct lined with pseudostratified epithelium
    Neutrophil white blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cells, digital illustration.
    Animal cells with mitochondria, digital illustration. — Stock Photo
    Animal cells with mitochondria, digital illustration.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    3d illustration of cell division, cell membrane and splitting red nucleus. — Stock Photo
    3d illustration of cell division, cell membrane and splitting red nucleus.
    Illustration showing different types of blood cells, erythrocytes, neutrophil, monocyte, basophil, eosinophil, lymphocyte, and platelets. — Stock Photo
    Illustration showing different types of blood cells, erythrocytes, neutrophil, monocyte, basophil, eosinophil, lymphocyte, and platelets.
    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.
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer illustration
    Medical illustration of human cell structure on white background. — Stock Photo
    Medical illustration of human cell structure on white background.
    Human sperm cells — Stock Photo
    Human sperm cells
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Cells dividing, computer illustration — Stock Photo
    Cells dividing, computer illustration
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Colored scanning electron micrograph of breast cancer cell. — Stock Photo
    Colored scanning electron micrograph of breast cancer cell.