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    Red blood cells on white background, digital illustration. — Stock Photo
    Red blood cells on white background, digital illustration.
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans. — Stock Photo
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans.
    Milkwort pollen grain — Stock Photo
    Milkwort pollen grain
    Kidney glomerulus and podocyte cells — Stock Photo
    Kidney glomerulus and podocyte cells
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba. — Stock Photo
    Digital illustration of trophozoite form of Acanthamoeba castellanii amoeba.
    Male sex cell — Stock Photo
    Male sex cell
    Human white blood cell — Stock Photo
    Human white blood cell
    Coloured scanning electron micrograph (SEM) of a section through a foetal vein filled with red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a foetal vein filled with red blood cells (erythrocytes, red).
    3d rendered abstract illustration of pink nerve cell. — Stock Photo
    3d rendered abstract illustration of pink nerve cell.
    Acinar pancreatic cell — Stock Photo
    Acinar pancreatic cell
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Petri dishes with colorful liquids for microbiology research. — Stock Photo
    Petri dishes with colorful liquids for microbiology research.
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration. — Stock Photo
    Smear from oral cavity showing oral trichomonas and buccal epithelial cells, digital illustration.
    3d illustration of sperm cells approaching egg cell on colorful blue background. — Stock Photo
    3d illustration of sperm cells approaching egg cell on colorful blue background.
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Purkinje cell of brain cerebellum, digital illustration. — Stock Photo
    Purkinje cell of brain cerebellum, digital illustration.
    3d rendered illustration of human nerve cell on black background. — Stock Photo
    3d rendered illustration of human nerve cell on black background.
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases — Stock Photo
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases
    Illustration of pink human egg cell on black background. — Stock Photo
    Illustration of pink human egg cell on black background.
    Campylobacter jejuni bacteria — Stock Photo
    Campylobacter jejuni bacteria
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Red blood cells in bloodstream — Stock Photo
    Red blood cells in bloodstream
    Thyroid gland cancer with closeup view of cancer cells, computer illustration. — Stock Photo
    Thyroid gland cancer with closeup view of cancer cells, computer illustration.
    Animal cell structure — Stock Photo
    Animal cell structure
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Enterococcus bacteria colony — Stock Photo
    Enterococcus bacteria colony
    Digital illustration of red cancer cells, full frame. — Stock Photo
    Digital illustration of red cancer cells, full frame.
    Light micrograph of onion (Allium cepa) root tip cells undergoing mitosis (nuclear division). — Stock Photo
    Light micrograph of onion (Allium cepa) root tip cells undergoing mitosis (nuclear division).
    Crenated red blood cells — Stock Photo
    Crenated red blood cells
    HIV viruses infecting T-lymphocytes — Stock Photo
    HIV viruses infecting T-lymphocytes
    3d illustration of blue cells pattern with yellow nuclei. — Stock Photo
    3d illustration of blue cells pattern with yellow nuclei.
    Animal cell during cytokinesis (cell division), illustration. — Stock Photo
    Animal cell during cytokinesis (cell division), illustration.
    Normal human sperm cells — Stock Photo
    Normal human sperm cells
    Unicellular fungus Candida auris — Stock Photo
    Unicellular fungus Candida auris
    Human cytomegalovirus particles in blood flow, digital illustration. — Stock Photo
    Human cytomegalovirus particles in blood flow, digital illustration.
    Nerves synapse, biological digital illustration. — Stock Photo
    Nerves synapse, biological digital illustration.
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    Helicobacter pyloris bacteria — Stock Photo
    Helicobacter pyloris bacteria
    Coloured scanning electron micrograph (SEM) of a squamous cell on the surface of the skin. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a squamous cell on the surface of the skin.
    3d illustration of red colored protozoan microorganism. — Stock Photo
    3d illustration of red colored protozoan microorganism.
    Illustration of transparent cancer cell on blue background. — Stock Photo
    Illustration of transparent cancer cell on blue background.
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze. — Stock Photo
    Coloured scanning electron micrograph of activated platelets attached to surgical gauze.
    Digital illustration of human cells on blue background. — Stock Photo
    Digital illustration of human cells on blue background.
    In vitro fertilisation, computer illustration — Stock Photo
    In vitro fertilisation, computer illustration
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells. — Stock Photo
    Digital illustration of Neisseria gonorrhoeae bacteria inside neutrophil white blood cells.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Red blood cells on black background, digital illustration. — Stock Photo
    Red blood cells on black background, digital illustration.
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem. — Stock Photo
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem.
    Neural network showing synaptic terminals — Stock Photo
    Neural network showing synaptic terminals
    Cancer cell attacked by T cell — Stock Photo
    Cancer cell attacked by T cell
    Human smooth muscle, light micrograph. — Stock Photo
    Human smooth muscle, light micrograph.
    Realistic illustration of human nerve cell on white background. — Stock Photo
    Realistic illustration of human nerve cell on white background.
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia. — Stock Photo
    Colored illustration showing abundant lymphoblast cells in human bone marrow smear in acute lymphoblastic leukaemia.
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Light micrograph of nerve cells. — Stock Photo
    Light micrograph of nerve cells.
    Illustration of red and white blood cells in the bloodstream. — Stock Photo
    Illustration of red and white blood cells in the bloodstream.
    Erythrocyte red blood cell, digital illustration. — Stock Photo
    Erythrocyte red blood cell, digital illustration.
    Brain cancer, conceptual computer illustration — Stock Photo
    Brain cancer, conceptual computer illustration
    Animal cell during cytokinesis (cell division), illustration. — Stock Photo
    Animal cell during cytokinesis (cell division), illustration.
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration