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    Cancer cell morphology — Stock Photo
    Cancer cell morphology
    Colored scanning electron micrograph of red blood cells. — Stock Photo
    Colored scanning electron micrograph of red blood cells.
    Dividing stem cells — Stock Photo
    Dividing stem cells
    3d illustration of red cells pattern, full frame. — Stock Photo
    3d illustration of red cells pattern, full frame.
    Campylobacter bacteria colony — Stock Photo
    Campylobacter bacteria colony
    Digital illustration of trypanosomes in red blood cells in blood causing sleeping sickness. — Stock Photo
    Digital illustration of trypanosomes in red blood cells in blood causing sleeping sickness.
    Cancer cell anatomy — Stock Photo
    Cancer cell anatomy
    Red blood cells and platelets, computer illustration. — Stock Photo
    Red blood cells and platelets, computer illustration.
    Female researcher using light microscope for examining stem cells in culture jar. — Stock Photo
    Female researcher using light microscope for examining stem cells in culture jar.
    Human sperm approaching egg cell — Stock Photo
    Human sperm approaching egg cell
    Helicobacter pylori bacteria — Stock Photo
    Helicobacter pylori bacteria
    Enterococcus bacteria colony — Stock Photo
    Enterococcus bacteria colony
    Illustration of dividing cancer cell on blue background. — Stock Photo
    Illustration of dividing cancer cell on blue background.
    Illustration of giardia parasite on blue background. — Stock Photo
    Illustration of giardia parasite on blue background.
    Nerve cell on black background, digital illustration. — Stock Photo
    Nerve cell on black background, digital illustration.
    Red blood cells in blood vessel, digital illustration. — Stock Photo
    Red blood cells in blood vessel, digital illustration.
    Axon connections between cells — Stock Photo
    Axon connections between cells
    Cell layers of the retina — Stock Photo
    Cell layers of the retina
    Round red cells on plain background, digital illustration. — Stock Photo
    Round red cells on plain background, digital illustration.
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration. — Stock Photo
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration.
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Cancer cell morphology — Stock Photo
    Cancer cell morphology
    Human artery showing artery walls and bloodstream — Stock Photo
    Human artery showing artery walls and bloodstream
    Structure of cellular organelles — Stock Photo
    Structure of cellular organelles
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Cancer cell, computer illustration — Stock Photo
    Cancer cell, computer illustration
    B cell and antibodies, computer illustration — Stock Photo
    B cell and antibodies, computer illustration
    Human T-cell lymphotropic virus particle, digital conceptual illustration. — Stock Photo
    Human T-cell lymphotropic virus particle, digital conceptual illustration.
    Technicians preparing and checking samples in manufacturing bioengineering laboratory. — Stock Photo
    Technicians preparing and checking samples in manufacturing bioengineering laboratory.
    Daffodil pollen structure and shape — Stock Photo
    Daffodil pollen structure and shape
    Amoeba shell. Coloured scanning electron micrograph (SEM) of a shell from a Euglypha sp. amoeba. — Stock Photo
    Amoeba shell. Coloured scanning electron micrograph (SEM) of a shell from a Euglypha sp. amoeba.
    Colored digital artwork of cancer cell. — Stock Photo
    Colored digital artwork of cancer cell.
    Digital illustration of hypochromic and microcytic red blood cells while iron deficiency anaemia. — Stock Photo
    Digital illustration of hypochromic and microcytic red blood cells while iron deficiency anaemia.
    Nanoparticles in blood — Stock Photo
    Nanoparticles in blood
    Cancer cell structure and shape — Stock Photo
    Cancer cell structure and shape
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration. — Stock Photo
    Erythrocytes and leukocytes blood cells in human blood vessel, digital illustration.
    Realistic illustration of human nerve cell on white background. — Stock Photo
    Realistic illustration of human nerve cell on white background.
    T lymphocyte cells attached to cancer cell — Stock Photo
    T lymphocyte cells attached to cancer cell
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases — Stock Photo
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases
    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.
    Activated T lymphocytes and red blood cells on scanning electron micrograph. — Stock Photo
    Activated T lymphocytes and red blood cells on scanning electron micrograph.
    Human nerve structure in cross section, digital illustration. — Stock Photo
    Human nerve structure in cross section, digital illustration.
    Pancreatic cancer cells — Stock Photo
    Pancreatic cancer cells
    Enteroviruses and neuron — Stock Photo
    Enteroviruses and neuron
    Nerve cell structure in cross section on black background, digital illustration. — Stock Photo
    Nerve cell structure in cross section on black background, digital illustration.
    Fat cells and supportive connective tissue — Stock Photo
    Fat cells and supportive connective tissue
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Cancer cells with blood vessel formation — Stock Photo
    Cancer cells with blood vessel formation
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Scientist preparing cells in multiwell plate. — Stock Photo
    Scientist preparing cells in multiwell plate.
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    Digital illustration showing abundant lymphoblast cells in human blood in acute lymphoblastic leukaemia. — Stock Photo
    Digital illustration showing abundant lymphoblast cells in human blood in acute lymphoblastic leukaemia.
    Biology laboratory scientist hands working with cell culture in flask. — Stock Photo
    Biology laboratory scientist hands working with cell culture in flask.
    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
    Structure and shape of basophil — Stock Photo
    Structure and shape of basophil
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Red blood cells in bloodstream — Stock Photo
    Red blood cells in bloodstream
    Nerve cell, computer illustration — Stock Photo
    Nerve cell, computer illustration