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    Medical illustration of human cell structure on dark background. — Stock Photo
    Medical illustration of human cell structure on dark background.
    Animal cells with mitochondria, digital illustration. — Stock Photo
    Animal cells with mitochondria, digital illustration.
    Illustration of potassium channel, delta opioid receptor, low-density lipoprotein receptor, acetylcholine receptor. — Stock Photo
    Illustration of potassium channel, delta opioid receptor, low-density lipoprotein receptor, acetylcholine receptor.
    Red blood cells and white blood cells — Stock Photo
    Red blood cells and white blood cells
    Bone marrow cell — Stock Photo
    Bone marrow cell
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Illustration showing different types of blood cells, erythrocytes, neutrophil, monocyte, basophil, eosinophil, lymphocyte, and platelets. — Stock Photo
    Illustration showing different types of blood cells, erythrocytes, neutrophil, monocyte, basophil, eosinophil, lymphocyte, and platelets.
    Chromatin, illustration. Chromatin is condensed form of DNA (deoxyribonucleic acid) and proteins found in cell nucleus — Stock Photo
    Chromatin, illustration. Chromatin is condensed form of DNA (deoxyribonucleic acid) and proteins found in cell nucleus
    Lymphocyte white blood cell — Stock Photo
    Lymphocyte white blood cell
    Destruction of cancer cell, digital conceptual illustration illustrating treatment of cancer by drugs, nanoparticles and antibodies. — Stock Photo
    Destruction of cancer cell, digital conceptual illustration illustrating treatment of cancer by drugs, nanoparticles and antibodies.
    Cancer cells dividing — Stock Photo
    Cancer cells dividing
    Cell with pseudopodia — Stock Photo
    Cell with pseudopodia
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    Human sperm cells — Stock Photo
    Human sperm cells
    Duct lined with pseudostratified epithelium — Stock Photo
    Duct lined with pseudostratified epithelium
    Purkinje neurons in the cerebellum — Stock Photo
    Purkinje neurons in the cerebellum
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Animal cells with mitochondria, digital illustration. — Stock Photo
    Animal cells with mitochondria, digital illustration.
    Researchers handling stem cell cultures in laboratory while drug research. — Stock Photo
    Researchers handling stem cell cultures in laboratory while drug research.
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Digital artwork of white blood cells attacking illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking illuminated cancer cell.
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Human brain cells — Stock Photo
    Human brain cells
    Coloured scanning electron micrograph of ovarian cancer cells. — Stock Photo
    Coloured scanning electron micrograph of ovarian cancer cells.
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Abstract animal cells, digital illustration. — Stock Photo
    Abstract animal cells, digital illustration.
    Migrating cancer cells — Stock Photo
    Migrating cancer cells
    Medical illustration of human cell structure on dark background. — Stock Photo
    Medical illustration of human cell structure on dark background.
    Plant leaf structure, illustration. Cross-section of a typical plant leaf. In most plants, leaves are the major site of photosynthesis — Stock Photo
    Plant leaf structure, illustration. Cross-section of a typical plant leaf. In most plants, leaves are the major site of photosynthesis
    Human blood cells — Stock Photo
    Human blood cells
    Microscopic colored view of a unipolar neuron — Stock Photo
    Microscopic colored view of a unipolar neuron
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Illustration of enzyme complex ATP production in mitochondrion. — Stock Photo
    Illustration of enzyme complex ATP production in mitochondrion.
    Fractured pancreas tissue — Stock Photo
    Fractured pancreas tissue
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei. — Stock Photo
    Eosinophil white blood cells in blood vessel, digital illustration showing lobed nuclei.
    Illustration of sphere vesicles transporting along microtubule by kinesin proteins. — Stock Photo
    Illustration of sphere vesicles transporting along microtubule by kinesin proteins.
    Illustration of dendritic cell interacting with T-cells on black background. — Stock Photo
    Illustration of dendritic cell interacting with T-cells on black background.
    Undifferentiated stem cells — Stock Photo
    Undifferentiated stem cells
    Testicular cancer or teratoma — Stock Photo
    Testicular cancer or teratoma
    Chromatin, illustration. Chromatin is condensed form of DNA (deoxyribonucleic acid) and proteins found in cell nucleus — Stock Photo
    Chromatin, illustration. Chromatin is condensed form of DNA (deoxyribonucleic acid) and proteins found in cell nucleus
    Cardiac muscle cells — Stock Photo
    Cardiac muscle cells
    Normal blood cells in artery — Stock Photo
    Normal blood cells in artery
    Female scientist viewing tissue sample under microscope. — Stock Photo
    Female scientist viewing tissue sample under microscope.
    Conceptual image of a neuron on black background — Stock Photo
    Conceptual image of a neuron on black background
    Visual rendering of Human cells — Stock Photo
    Visual rendering of Human cells
    Lymphocyte cell structure and shape — Stock Photo
    Lymphocyte cell structure and shape
    Panoramic illustration of blood vessel with eosinophilia with numerous eosinophils white blood cells, anti-parasite immune system. — Stock Photo
    Panoramic illustration of blood vessel with eosinophilia with numerous eosinophils white blood cells, anti-parasite immune system.
    Inner structure of a typical bacterial cell, illustration. Bacterial cells do not have a membrane-bound nucleus or organelles — Stock Photo
    Inner structure of a typical bacterial cell, illustration. Bacterial cells do not have a membrane-bound nucleus or organelles
    Fallopian tube cellular structure — Stock Photo
    Fallopian tube cellular structure
    Microscopic view of birch tree pollen on green background — Stock Photo
    Microscopic view of birch tree pollen on green background
    Coloured scanning electron micrograph (SEM) of a fractured mucous membrane of the trachea (wind pipe), showing the epithelium and underlying connective tissue. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a fractured mucous membrane of the trachea (wind pipe), showing the epithelium and underlying connective tissue.
    Lysosome fusing with autophagosome — Stock Photo
    Lysosome fusing with autophagosome
    Leukaemia blood cells — Stock Photo
    Leukaemia blood cells
    Normal human red blood cell — Stock Photo
    Normal human red blood cell
    Visual rendering of Human cells — Stock Photo
    Visual rendering of Human cells
    Human white blood cell — Stock Photo
    Human white blood cell
    Pathophysiology of diabetic foot ulcers — Stock Photo
    Pathophysiology of diabetic foot ulcers