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2262 results

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    Blood clot structure — Stock Photo
    Blood clot structure
    Cultured cancer cells — Stock Photo
    Cultured cancer cells
    Blood clot or thrombus — Stock Photo
    Blood clot or thrombus
    Normal sperm cells — Stock Photo
    Normal sperm cells
    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
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Enterovirus with attached integrin molecules — Stock Photo
    Enterovirus with attached integrin molecules
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Artery partially blocked by atheroma — Stock Photo
    Artery partially blocked by atheroma
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    White blood cell engulfing bacteria — Stock Photo
    White blood cell engulfing bacteria
    Grey matter of the cerebellum — Stock Photo
    Grey matter of the cerebellum
    Influenza viruses and host cell — Stock Photo
    Influenza viruses and host cell
    Human papillomavirus particles in the bloodstream — Stock Photo
    Human papillomavirus particles in the bloodstream
    Human oesophagus wall — Stock Photo
    Human oesophagus wall
    Red blood cells — Stock Photo
    Red blood cells
    Campylobacter bacteria colony — Stock Photo
    Campylobacter bacteria colony
    Male sex cell — Stock Photo
    Male sex cell
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Unicellular fungus Candida auris — Stock Photo
    Unicellular fungus Candida auris
    Unicellular fungus Candida auris — Stock Photo
    Unicellular fungus Candida auris
    T-lymphocytes attacking a cancer cell — Stock Photo
    T-lymphocytes attacking a cancer cell
    Virus particles spreading through blood stream — Stock Photo
    Virus particles spreading through blood stream
    Enterovirus with attached integrin molecules — Stock Photo
    Enterovirus with attached integrin molecules
    HIV virus particles — Stock Photo
    HIV virus particles
    Healthy red and white blood cells — Stock Photo
    Healthy red and white blood cells
    Helicobacter pylori bacteria — Stock Photo
    Helicobacter pylori bacteria
    White blood cell structure — Stock Photo
    White blood cell structure
    Pathogenic bacteria in the blood stream — Stock Photo
    Pathogenic bacteria in the blood stream
    Red blood cells in bloodstream — Stock Photo
    Red blood cells in bloodstream
    Structure and shape of basophil — Stock Photo
    Structure and shape of basophil
    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 papillomavirus particles in the bloodstream — Stock Photo
    Human papillomavirus particles in the bloodstream
    Human sperm cells — Stock Photo
    Human sperm cells
    Human papillomavirus particles in the bloodstream — Stock Photo
    Human papillomavirus particles in the bloodstream
    Enteroviruses and neuron — Stock Photo
    Enteroviruses and neuron
    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
    Helicobacter pyloris bacteria — Stock Photo
    Helicobacter pyloris bacteria
    Activated macrophage attacking bacteria — Stock Photo
    Activated macrophage attacking bacteria
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Human immunodeficiency virus structure — Stock Photo
    Human immunodeficiency virus structure
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Helicobacter pyloris bacteria — Stock Photo
    Helicobacter pyloris bacteria
    Nerve cells and intercellular junctions — Stock Photo
    Nerve cells and intercellular junctions
    Human sperm approaching egg cell — Stock Photo
    Human sperm approaching egg cell
    Structure and shape of basophil — Stock Photo
    Structure and shape of basophil
    Nerve cell structure on plain background — Stock Photo
    Nerve cell structure on plain background
    HIV viruses infecting T-lymphocyte cell — Stock Photo
    HIV viruses infecting T-lymphocyte cell
    Amyloid plaques amongst neurons — Stock Photo
    Amyloid plaques amongst neurons