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13809983 results

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    Cancer cell attacked by T cell — Stock Photo
    Cancer cell attacked by T cell
    Virus particles spreading through blood stream — Stock Photo
    Virus particles spreading through blood stream
    White blood cell, digital illustration. — Stock Photo
    White blood cell, digital illustration.
    Campylodiscus fastuosus diatom — Stock Photo
    Campylodiscus fastuosus diatom
    Osteoclast cell structure — Stock Photo
    Osteoclast cell structure
    Human papillomavirus particles in the bloodstream — Stock Photo
    Human papillomavirus particles in the bloodstream
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Abstract green colored cancer cells on tissue, digital illustration. — Stock Photo
    Abstract green colored cancer cells on tissue, digital illustration.
    Polio virus particles in the bloodstream — Stock Photo
    Polio virus particles in the bloodstream
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration. These Gram-positive spherical bacteria are usually found in pairs. They colonize respiratory tract asymptomatically in healthy carriers, but can cause pneumonia — Stock Photo
    Streptococcus pneumoniae bacteria (pneumococci), computer illustration. These Gram-positive spherical bacteria are usually found in pairs. They colonize respiratory tract asymptomatically in healthy carriers, but can cause pneumonia
    Broom pollen grain — Stock Photo
    Broom pollen grain
    In vitro fertilisation process — Stock Photo
    In vitro fertilisation process
    Axon connections between cells — Stock Photo
    Axon connections between cells
    3d rendered illustration of purple nerve cell. — Stock Photo
    3d rendered illustration of purple nerve cell.
    Digital 3d colored illustration of cancer cell in process of mitosis. — Stock Photo
    Digital 3d colored illustration of cancer cell in process of mitosis.
    Cancer cell characteristic — Stock Photo
    Cancer cell characteristic
    Bloodstream showing red blood cells — Stock Photo
    Bloodstream showing red blood cells
    Brain neural network, computer illustration. — Stock Photo
    Brain neural network, computer illustration.
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.
    Osteoclast cell structure — Stock Photo
    Osteoclast cell structure
    Cancer cell morphology — Stock Photo
    Cancer cell morphology
    Illustration of abstract cancer cell with tentacles on plain background. — Stock Photo
    Illustration of abstract cancer cell with tentacles on plain background.
    Conceptual illustration of degeneration of dopaminergic neurons. — Stock Photo
    Conceptual illustration of degeneration of dopaminergic neurons.
    Neutrophil in human blood, computer illustration. — Stock Photo
    Neutrophil in human blood, computer illustration.
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    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
    Chlamydia bacteria, illustration — Stock Photo
    Chlamydia bacteria, illustration
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in blood vessel, digital illustration. — Stock Photo
    Protozoa Plasmodium falciparum, causative agent of tropical malaria in blood vessel, digital illustration.
    Digital illustration showing inclusion composed of chlamydia reticulate bodies near nucleus of cell. — Stock Photo
    Digital illustration showing inclusion composed of chlamydia reticulate bodies near nucleus of cell.
    Blue colored nerve cell on white background, digital illustration. — Stock Photo
    Blue colored nerve cell on white background, digital illustration.
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration. — Stock Photo
    Lymphocyte, monocyte and neutrophil white blood cells in blood smear, digital illustration.
    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.
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept. — Stock Photo
    Digital illustration showing destruction of lymphoblast cells, acute lymphoblastic leukaemia treatment concept.
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli. — Stock Photo
    Coloured scanning electron micrograph of cultured cancer cell from human cervix showing numerous microvilli.
    Female scientist using pipette in laboratory — Stock Photo
    Female scientist using pipette in laboratory
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red).
    Fatcells structure and anatomy — Stock Photo
    Fatcells structure and anatomy
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Illustration of a cancer cell. — Stock Photo
    Illustration of a cancer cell.
    Abstract blood vessel with white and red blood cells, digital illustration. — Stock Photo
    Abstract blood vessel with white and red blood cells, digital illustration.
    Healthy human sperm cells — Stock Photo
    Healthy human sperm cells
    Human T-cell lymphotropic virus particle, digital conceptual illustration. — Stock Photo
    Human T-cell lymphotropic virus particle, digital conceptual illustration.
    Normal White blood cell — Stock Photo
    Normal White blood cell
    Hair follicles of human skin — Stock Photo
    Hair follicles of human skin
    Light micrograph of plant cells. Plant cells have cell walls, constructed outside the cell membrane and composed of cellulose, hemicelluloses, and pectin. — Stock Photo
    Light micrograph of plant cells. Plant cells have cell walls, constructed outside the cell membrane and composed of cellulose, hemicelluloses, and pectin.
    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.
    Illustration of enzymes driving synthesis of energy-carrying molecule ATP. — Stock Photo
    Illustration of enzymes driving synthesis of energy-carrying molecule ATP.
    Conceptual digital illustration of medical nanorobot attacking cancerous cell. — Stock Photo
    Conceptual digital illustration of medical nanorobot attacking cancerous cell.
    Light micrograph of cardiac callosity. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of cardiac callosity. Haematoxylin and eosin stain.
    Magnified digital illustration of neutrophil cell. — Stock Photo
    Magnified digital illustration of neutrophil cell.
    Macrophage foam cells with lipid droplets, digital illustration. — Stock Photo
    Macrophage foam cells with lipid droplets, digital illustration.
    Coloured scanning electron micrograph of cancer cell from human colon. — Stock Photo
    Coloured scanning electron micrograph of cancer cell from human colon.
    Cancer cell morphology — Stock Photo
    Cancer cell morphology
    Scanning electron micrograph of PC12 neurone in culture. — Stock Photo
    Scanning electron micrograph of PC12 neurone in culture.
    HIV viruses infecting T-lymphocyte cell — Stock Photo
    HIV viruses infecting T-lymphocyte cell
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Eupodiscus sculptus diatom — Stock Photo
    Eupodiscus sculptus diatom