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3207 results

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    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Cancer cell characteristic — Stock Photo
    Cancer cell characteristic
    Human sperm cells — Stock Photo
    Human sperm cells
    Rod-shaped bacteria with flagellum — Stock Photo
    Rod-shaped bacteria with flagellum
    Red blood cells — Stock Photo
    Red blood cells
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Epithelial lining of Fallopian tube — Stock Photo
    Epithelial lining of Fallopian tube
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Fungal cells and sporangia — Stock Photo
    Fungal cells and sporangia
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Lung cancer cells — Stock Photo
    Lung cancer cells
    Migrating cancer cells — Stock Photo
    Migrating cancer cells
    Immature dog sperm — Stock Photo
    Immature dog sperm
    Grey matter of the cerebellum — Stock Photo
    Grey matter of the cerebellum
    Nerve cells and axons — Stock Photo
    Nerve cells and axons
    Human oesophagus wall — Stock Photo
    Human oesophagus wall
    Red blood cells — Stock Photo
    Red blood cells
    Fungal cells showing sporangium — Stock Photo
    Fungal cells showing sporangium
    Entamoeba histolytica engulfing red blood cells — Stock Photo
    Entamoeba histolytica engulfing red blood cells
    Unicellular fungus Candida auris — Stock Photo
    Unicellular fungus Candida auris
    Trypanosoma brucei protozoan — Stock Photo
    Trypanosoma brucei protozoan
    Unicellular fungus Candida auris — Stock Photo
    Unicellular fungus Candida auris
    Human red blood cells — Stock Photo
    Human red blood cells
    Virus particles spreading through blood stream — Stock Photo
    Virus particles spreading through blood stream
    HIV virus particles — Stock Photo
    HIV virus particles
    Healthy red and white blood cells — Stock Photo
    Healthy red and white blood cells
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Red blood cells in bloodstream — Stock Photo
    Red blood cells in bloodstream
    Plasma cell and antibodies — Stock Photo
    Plasma cell and antibodies
    Human sperm cells and egg cell — Stock Photo
    Human sperm cells and egg cell
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Human sperm cells — Stock Photo
    Human sperm cells
    Nanoparticles in blood — Stock Photo
    Nanoparticles in blood
    Nerve cells network — Stock Photo
    Nerve cells network
    Nerve cell structure — Stock Photo
    Nerve cell structure
    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