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3171 results

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    Nanoparticles in blood — Stock Photo
    Nanoparticles in blood
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    White blood cells — Stock Photo
    White blood cells
    Human immunodeficiency virus structure — Stock Photo
    Human immunodeficiency virus structure
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Nerve cells and intercellular junctions — Stock Photo
    Nerve cells and intercellular junctions
    Streptococcus thermophilus bacteria — Stock Photo
    Streptococcus thermophilus bacteria
    Amyloid plaques amongst neurons — Stock Photo
    Amyloid plaques amongst neurons
    Amyloid plaques amongst neurons — Stock Photo
    Amyloid plaques amongst neurons
    White blood cell — Stock Photo
    White blood cell
    Immunodeficiency virus infection in blood stream — Stock Photo
    Immunodeficiency virus infection in blood stream
    Entamoeba histolytica consuming red blood cells — Stock Photo
    Entamoeba histolytica consuming red blood cells
    Red blood cells — Stock Photo
    Red blood cells
    Marsh marigold carpel — Stock Photo
    Marsh marigold carpel
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Destruction of cancer cell — Stock Photo
    Destruction of cancer cell
    Activated platelet cells — Stock Photo
    Activated platelet cells
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Cancerous white blood cell in leukaemia — Stock Photo
    Cancerous white blood cell in leukaemia
    Sperm cell, or spermatozoa — Stock Photo
    Sperm cell, or spermatozoa
    Normal sperm cells — Stock Photo
    Normal sperm cells
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Human red blood cells and platelets — Stock Photo
    Human red blood cells and platelets
    Embryo at blastocyst stage — Stock Photo
    Embryo at blastocyst stage
    Fibrosarcoma cells in late stage of mitosis — Stock Photo
    Fibrosarcoma cells in late stage of mitosis
    Red blood cells flowing inside an artery — Stock Photo
    Red blood cells flowing inside an artery
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Pancreatic cancer cells — Stock Photo
    Pancreatic cancer cells
    Intestinal villi projections — Stock Photo
    Intestinal villi projections
    Cancer cells and white blood cells — Stock Photo
    Cancer cells and white blood cells
    Red blood cells — Stock Photo
    Red blood cells
    Trypanosoma brucei protozoan — Stock Photo
    Trypanosoma brucei protozoan
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Healthy red blood cells — Stock Photo
    Healthy red blood cells
    Brain and nerve cells — Stock Photo
    Brain and nerve cells
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Microvilli of gallbladder surface — Stock Photo
    Microvilli of gallbladder surface
    Cancer cell with filaments — Stock Photo
    Cancer cell with filaments
    Embryo selection for IVF — Stock Photo
    Embryo selection for IVF
    Ductal carcinoma of the breast — Stock Photo
    Ductal carcinoma of the breast
    Deformed sperm cell — Stock Photo
    Deformed sperm cell
    Bacterial cells on tissue surface — Stock Photo
    Bacterial cells on tissue surface
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Pollen threads and brochosomes — Stock Photo
    Pollen threads and brochosomes
    Red blood cells in a blood vessel — Stock Photo
    Red blood cells in a blood vessel
    Fungal cells with sporangia and spores — Stock Photo
    Fungal cells with sporangia and spores
    Sickle cell anaemia — Stock Photo
    Sickle cell anaemia
    Nerve cell in brain tissue — Stock Photo
    Nerve cell in brain tissue
    Nerve cells and intercellular junctions — Stock Photo
    Nerve cells and intercellular junctions
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Fungal cells with sporangia and spores — Stock Photo
    Fungal cells with sporangia and spores
    Virus particles spreading through blood stream — Stock Photo
    Virus particles spreading through blood stream
    Nerve cells and axons — Stock Photo
    Nerve cells and axons
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Red blood cells in a blood vessel — Stock Photo
    Red blood cells in a blood vessel
    Red blood cells in sickle cell anaemia — Stock Photo
    Red blood cells in sickle cell anaemia