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    Coloured scanning electron micrograph of breast cancer cell. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cell.
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer illustration
    Illustration of enzyme complex ATP production in mitochondrion. — Stock Photo
    Illustration of enzyme complex ATP production in mitochondrion.
    Coloured scanning electron micrograph of breast cancer cells. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cells.
    3d illustration of cell division, cell membrane and splitting red nucleus. — Stock Photo
    3d illustration of cell division, cell membrane and splitting red nucleus.
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death. — Stock Photo
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death.
    Abstract animal cell on black background, digital illustration. — Stock Photo
    Abstract animal cell on black background, digital illustration.
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer illustration
    Illustration of transmembrane proteins and glycolipids on outer surface of cell membrane. — Stock Photo
    Illustration of transmembrane proteins and glycolipids on outer surface of cell membrane.
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Chromatin, illustration. Chromatin is condensed form of DNA (deoxyribonucleic acid) and proteins found in cell nucleus — Stock Photo
    Chromatin, illustration. Chromatin is condensed form of DNA (deoxyribonucleic acid) and proteins found in cell nucleus
    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.
    Abstract animal cells, digital illustration. — Stock Photo
    Abstract animal cells, 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.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    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.
    Destruction of a cancer cell by antibodies — Stock Photo
    Destruction of a cancer cell by antibodies
    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.
    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.
    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
    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.
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Lysosome fusing with autophagosome — Stock Photo
    Lysosome fusing with autophagosome
    Abstract animal cell on black background, digital illustration. — Stock Photo
    Abstract animal cell on black background, digital illustration.
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Neutrophil white blood cell in blood, digital artwork. — Stock Photo
    Neutrophil white blood cell in blood, digital artwork.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Destruction of a cancer cell by antibodies — Stock Photo
    Destruction of a cancer cell by antibodies
    Plant leaf structure, illustration. Cross-section of a typical plant leaf. In most plants, leaves are the major site of photosynthesis — Stock Photo
    Plant leaf structure, illustration. Cross-section of a typical plant leaf. In most plants, leaves are the major site of photosynthesis
    Scientist preparing cells in multiwell plate. — Stock Photo
    Scientist preparing cells in multiwell plate.
    Neutrophil white blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cells, digital illustration.
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    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.
    Nerve cells and axon structures — Stock Photo
    Nerve cells and axon structures
    Nerve cells and nerve network — Stock Photo
    Nerve cells and nerve network
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, 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.
    Coloured scanning electron micrograph of breast cancer cell. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cell.
    Destruction of cancer cell, digital conceptual illustration illustrating treatment of cancer by drugs, nanoparticles and antibodies. — Stock Photo
    Destruction of cancer cell, digital conceptual illustration illustrating treatment of cancer by drugs, nanoparticles and antibodies.
    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.
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    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
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    3d illustration of a mitochondrion within a cell. Mitochondria are organelles found in the cytoplasm of eukaryotic cells. They oxidase sugars and fats to produce energy — Stock Photo
    3d illustration of a mitochondrion within a cell. Mitochondria are organelles found in the cytoplasm of eukaryotic cells. They oxidase sugars and fats to produce energy
    Animal Cells in culture — Stock Photo
    Animal Cells in culture
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    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
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death. — Stock Photo
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death.
    Amyloid precursor protein of cell membrane, digital illustration. — Stock Photo
    Amyloid precursor protein of cell membrane, digital illustration.
    Scientist pipetting sample into growth medium in multiwell plate. — Stock Photo
    Scientist pipetting sample into growth medium in multiwell plate.
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Illustration of beige stem cell on black background. — Stock Photo
    Illustration of beige stem cell on black background.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer 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.