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    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    Digital artwork of white blood cells attacking green illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking green illuminated cancer cell.
    Coloured scanning electron micrograph (SEM) of a tumour cell, showing pseudopodia protrusions (bottom left and right), a prominent feature of actively motile cells. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a tumour cell, showing pseudopodia protrusions (bottom left and right), a prominent feature of actively motile cells.
    Carcinoma cell, coloured transmission electron micrograph (TEM). — Stock Photo
    Carcinoma cell, coloured transmission electron micrograph (TEM).
    Monocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Monocyte white blood cell in blood smear, digital illustration.
    Neutrophil cells aggregating at site of infection — Stock Photo
    Neutrophil cells aggregating at site of infection
    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.
    Osteoclast cell structure — Stock Photo
    Osteoclast cell structure
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets. — Stock Photo
    Coloured scanning electron micrograph of human red blood cells, white blood cells and platelets.
    Abstract animal cells, digital illustration. — Stock Photo
    Abstract animal cells, digital illustration.
    Red blood cells — Stock Photo
    Red blood cells
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Scientist preparing cells in multiwell plate. — Stock Photo
    Scientist preparing cells in multiwell plate.
    Illustration of enzyme complex ATP production in mitochondrion. — Stock Photo
    Illustration of enzyme complex ATP production in mitochondrion.
    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.
    Animal Cells in culture — Stock Photo
    Animal Cells in culture
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration.
    Structure of white blood cell — Stock Photo
    Structure of white blood cell
    Uneven surface and cytoplasmic projections — Stock Photo
    Uneven surface and cytoplasmic projections
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Lung cancer cells — Stock Photo
    Lung cancer cells
    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.
    Visual rendering of Animal cells — Stock Photo
    Visual rendering of Animal cells
    Human white blood cell — Stock Photo
    Human white blood cell
    Monocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Monocyte white blood cell in blood smear, digital illustration.
    Digital illustration of cell in early stage of programmed cell death. — Stock Photo
    Digital illustration of cell in early stage of programmed cell death.
    Digital illustration of structure of bilayer with phospholipids plasma membrane enclosing cells. — Stock Photo
    Digital illustration of structure of bilayer with phospholipids plasma membrane enclosing cells.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Apoptosis of neuron cell — Stock Photo
    Apoptosis of neuron cell
    Carcinoma cell, coloured transmission electron micrograph (TEM). — Stock Photo
    Carcinoma cell, coloured transmission electron micrograph (TEM).
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    3d illustration of a Golgi apparatus, or body, within a eukaryotic cell. Golgi are membrane-bound organelles that modify and package proteins. — Stock Photo
    3d illustration of a Golgi apparatus, or body, within a eukaryotic cell. Golgi are membrane-bound organelles that modify and package proteins.
    Male sex cell — Stock Photo
    Male sex 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.
    Abstract animal cells, digital illustration. — Stock Photo
    Abstract animal cells, digital illustration.
    Cancer cell characteristic — Stock Photo
    Cancer cell characteristic
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Bile duct cellular sctructure — Stock Photo
    Bile duct cellular sctructure
    Medical illustration of blastocyst beginning implanting in the wall of the uterus — Stock Photo
    Medical illustration of blastocyst beginning implanting in the wall of the uterus
    Coloured scanning electron micrograph of breast cancer cell. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cell.
    Nerve cells and nerve network — Stock Photo
    Nerve cells and nerve network
    Illustration of dendritic cell interacting with T-cells on black background. — Stock Photo
    Illustration of dendritic cell interacting with T-cells on black background.
    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.
    Digital artwork of T-lymphocyte cells attacking red cancer cell. — Stock Photo
    Digital artwork of T-lymphocyte cells attacking red cancer cell.
    Cell with pseudopodia — Stock Photo
    Cell with pseudopodia
    Cilia covering the epithelial lining of the nasopharyx — Stock Photo
    Cilia covering the epithelial lining of the nasopharyx
    Section through the cerebellum in the brain — Stock Photo
    Section through the cerebellum in the brain
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    White blood cell — Stock Photo
    White blood cell
    Lysosome fusing with autophagosome — Stock Photo
    Lysosome fusing with autophagosome
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration. — Stock Photo
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Human sperm cells — Stock Photo
    Human sperm cells
    Destruction of a cancer cell by antibodies — Stock Photo
    Destruction of a cancer cell by antibodies
    Dividing cancerous cells — Stock Photo
    Dividing cancerous cells
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Animal cell with mitochondria, digital illustration. — Stock Photo
    Animal cell with mitochondria, digital illustration.
    Migrating cancer cells — Stock Photo
    Migrating cancer cells