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    Illustration of abnormal red blood cells known as spur cells acanthocytes. — Stock Photo
    Illustration of abnormal red blood cells known as spur cells acanthocytes.
    Green colored nerve cell on white background, digital illustration. — Stock Photo
    Green colored nerve cell on white background, digital illustration.
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Red blood cells, digital illustration. — Stock Photo
    Red blood cells, digital illustration.
    Colored digital artwork of cancer cell. — Stock Photo
    Colored digital artwork of cancer cell.
    3d illustration of the nucleus inside a eukaryotic cell. The nucleus contains the cell's genetic information in the form of DNA (deoxyribonucleic acid). The DNA is complexed with proteins and stored as chromatin — Stock Photo
    3d illustration of the nucleus inside a eukaryotic cell. The nucleus contains the cell's genetic information in the form of DNA (deoxyribonucleic acid). The DNA is complexed with proteins and stored as chromatin
    Researchers handling stem cell cultures in laboratory while drug research. — Stock Photo
    Researchers handling stem cell cultures in laboratory while drug research.
    Coloured scanning electron micrograph of breast cancer cells. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cells.
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.
    Plasmodium malariae protozoan and red blood cells in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoan and red blood cells in blood vessel, computer illustration.
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum, causative agent of tropical malaria in red blood cells, digital illustration.
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Human sperm cells — Stock Photo
    Human sperm cells
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    Red blood cells in the bloodstream — Stock Photo
    Red blood cells in the bloodstream
    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.
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze. — Stock Photo
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze.
    Antibodies attacking cancer cell, computer illustration — Stock Photo
    Antibodies attacking cancer cell, computer illustration
    Illustration of 4 cell stage egg on black background. — Stock Photo
    Illustration of 4 cell stage egg on black background.
    Protozoan Plasmodium falciparum cell, causative agent of tropical malaria, digital illustration. — Stock Photo
    Protozoan Plasmodium falciparum cell, causative agent of tropical malaria, digital illustration.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Blood clot structure — Stock Photo
    Blood clot structure
    Illustration of transparent stem cell on blue background. — Stock Photo
    Illustration of transparent stem cell on blue background.
    Bacteria and viruses in human artery, digital illustration. — Stock Photo
    Bacteria and viruses in human artery, digital illustration.
    Human sperm cells — Stock Photo
    Human sperm cells
    Cytotoxic T-cells capturing cancer cells, digital illustration. — Stock Photo
    Cytotoxic T-cells capturing cancer cells, digital illustration.
    Cancer cell structure and shape — Stock Photo
    Cancer cell structure and shape
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration.
    Destruction of a human embryo — Stock Photo
    Destruction of a human embryo
    Illustration of single human blood cell on white background. — Stock Photo
    Illustration of single human blood cell on white background.
    3d illustration of Ebola virus causing viral haemorrhagic fever in bloodstream with red and white blood cells. — Stock Photo
    3d illustration of Ebola virus causing viral haemorrhagic fever in bloodstream with red and white blood cells.
    Alstroemeria anther and pollen — Stock Photo
    Alstroemeria anther and pollen
    Parasites attacking female egg cell, digital illustration. — Stock Photo
    Parasites attacking female egg cell, digital illustration.
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Magnified digital illustration of neutrophil cell. — Stock Photo
    Magnified digital illustration of neutrophil cell.
    Axon connections between cells — Stock Photo
    Axon connections between cells
    Neutrophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cell and red blood cells, digital illustration.
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration.
    3d illustration of red blood cell erythrocyte, white blood cell leukocyte and platelet thrombocyte. — Stock Photo
    3d illustration of red blood cell erythrocyte, white blood cell leukocyte and platelet thrombocyte.
    Blue colored nerve cell on white background, digital illustration. — Stock Photo
    Blue colored nerve cell on white background, digital illustration.
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Red blood cells — Stock Photo
    Red blood cells
    Cancer cells with blood vessel formation — Stock Photo
    Cancer cells with blood vessel formation
    Conceptual image of a neurons with lightened axon — Stock Photo
    Conceptual image of a neurons with lightened axon
    Close-up of technician storing stem cell samples in cryostorage. — Stock Photo
    Close-up of technician storing stem cell samples in cryostorage.
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasites and red blood cell in flow, computer illustration.
    Microvilli of gallbladder surface — Stock Photo
    Microvilli of gallbladder surface
    Human sperm cells — Stock Photo
    Human sperm cells
    Nerve cells and nerve network — Stock Photo
    Nerve cells and nerve network
    Illustration of abnormal red blood cells known as spur cells acanthocytes. — Stock Photo
    Illustration of abnormal red blood cells known as spur cells acanthocytes.
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Intestinal villi projections — Stock Photo
    Intestinal villi projections
    Illustration of abnormal red blood cells known as spur cells acanthocytes. — Stock Photo
    Illustration of abnormal red blood cells known as spur cells acanthocytes.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Female scientist in clean suit with test tubes studying coronavirus — Stock Photo
    Female scientist in clean suit with test tubes studying coronavirus
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Coloured scanning electron micrograph of macrophage white blood cell. — Stock Photo
    Coloured scanning electron micrograph of macrophage white blood cell.