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2262 results

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    PC12 neurone in culture — Stock Photo
    PC12 neurone in culture
    Human sperm cells and egg cell — Stock Photo
    Human sperm cells and egg cell
    Human sperm cells — Stock Photo
    Human sperm cells
    Neural network showing synaptic terminals — Stock Photo
    Neural network showing synaptic terminals
    Lysosome fusing with autophagosome — Stock Photo
    Lysosome fusing with autophagosome
    Cell with pseudopodia — Stock Photo
    Cell with pseudopodia
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    Human sperm approaching egg cell — Stock Photo
    Human sperm approaching egg cell
    HIV viruses infecting T-lymphocyte cell — Stock Photo
    HIV viruses infecting T-lymphocyte cell
    Common house dust mite — Stock Photo
    Common house dust mite
    Normal human arteries, — Stock Photo
    Normal human arteries,
    Red blood cells — Stock Photo
    Red blood cells
    Red blood cells in blood stream — Stock Photo
    Red blood cells in blood stream
    Wilms tumour of the kidney — Stock Photo
    Wilms tumour of the kidney
    Artery partially blocked by an atheroma — Stock Photo
    Artery partially blocked by an atheroma
    Embryonic stem cells — Stock Photo
    Embryonic stem cells
    Stages of autophagy mechanism — Stock Photo
    Stages of autophagy mechanism
    Cancer cells dividing — Stock Photo
    Cancer cells dividing
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Red blood cells — Stock Photo
    Red blood cells
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Human x chromosomes — Stock Photo
    Human x chromosomes
    Red blood cells — Stock Photo
    Red blood cells
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Red blood cells — Stock Photo
    Red blood cells
    HIV particles in the bloodstream — Stock Photo
    HIV particles in the bloodstream
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Structure and shape of basophil — Stock Photo
    Structure and shape of basophil
    Lymphocyte white blood cells — Stock Photo
    Lymphocyte white blood cells
    Sickle cell anemia — Stock Photo
    Sickle cell anemia
    Red blood cells in blood stream — Stock Photo
    Red blood cells in blood stream
    Sporangium fungal cell with spores — Stock Photo
    Sporangium fungal cell with spores
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Red blood cells with fibrin — Stock Photo
    Red blood cells with fibrin
    Complex mucosal folding of seminal vesicle — Stock Photo
    Complex mucosal folding of seminal vesicle
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Virus particles spreading through blood stream — Stock Photo
    Virus particles spreading through blood stream
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Human embryo with four cells — Stock Photo
    Human embryo with four cells
    Neural network showing synaptic terminals — Stock Photo
    Neural network showing synaptic terminals
    Human white blood cell — Stock Photo
    Human white blood cell
    Chromosomes during cell division — Stock Photo
    Chromosomes during cell division
    Human white blood cell — Stock Photo
    Human white blood cell
    Normal red blood cells — Stock Photo
    Normal red blood cells
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Lymphocytes attacking a cancer cell — Stock Photo
    Lymphocytes attacking a cancer cell
    Artwork of cancerous cell — Stock Photo
    Artwork of cancerous cell
    Escherichia coli bacteria on gecko tongue — Stock Photo
    Escherichia coli bacteria on gecko tongue
    Testicular cancer or teratoma — Stock Photo
    Testicular cancer or teratoma
    Sperm cells in seminiferous tubule — Stock Photo
    Sperm cells in seminiferous tubule
    Crenated red blood cells — Stock Photo
    Crenated red blood cells
    Destruction of a human embryo — Stock Photo
    Destruction of a human embryo
    Sperm cell, or spermatozoa — Stock Photo
    Sperm cell, or spermatozoa
    Campylobacter bacteria colony — Stock Photo
    Campylobacter bacteria colony
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Breast cancer cells growing in culture — Stock Photo
    Breast cancer cells growing in culture
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    HIV particles in the bloodstream — Stock Photo
    HIV particles in the bloodstream
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus