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    Cropped view of scientist hands holding samples for biological research. — Stock Photo
    Cropped view of scientist hands holding samples for biological research.
    Structure of animal cell — Stock Photo
    Structure of animal cell
    Red blood cells in the bloodstream — Stock Photo
    Red blood cells in the bloodstream
    Stem cells dividing in bone marrow, digital illustration. — Stock Photo
    Stem cells dividing in bone marrow, digital illustration.
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple. — Stock Photo
    Digital illustration of eosinophil white blood cells with lobed nuclei colored in purple.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Conceptual image of a neuron on black background — Stock Photo
    Conceptual image of a neuron on black background
    Fatcells structure and anatomy — Stock Photo
    Fatcells structure and anatomy
    Structure of neutrophil white blood cell, digital illustration. — Stock Photo
    Structure of neutrophil white blood cell, digital illustration.
    Colored scanning electron micrograph of stem cell-derived motor neuron cell. — Stock Photo
    Colored scanning electron micrograph of stem cell-derived motor neuron cell.
    Adipose tissue composed of adipocytes — Stock Photo
    Adipose tissue composed of adipocytes
    Neutrophil white blood cell in blood, digital artwork. — Stock Photo
    Neutrophil white blood cell in blood, digital artwork.
    Nerve cells and axon structures — Stock Photo
    Nerve cells and axon structures
    Illustration of eosinophil white blood cell with purple lobed nuclei. — Stock Photo
    Illustration of eosinophil white blood cell with purple lobed nuclei.
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Digital artwork of white blood cells attacking illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking illuminated cancer cell.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Artwork of plasma cells — Stock Photo
    Artwork of plasma cells
    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.
    Human brain cells — Stock Photo
    Human brain cells
    Neutrophil and monocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Neutrophil and monocyte white blood cells in blood smear, digital illustration.
    Lysosome fusing with autophagosome — Stock Photo
    Lysosome fusing with autophagosome
    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.
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    Illustration of transmembrane proteins and glycolipids on outer surface of cell membrane. — Stock Photo
    Illustration of transmembrane proteins and glycolipids on outer surface of cell membrane.
    Testicular cancer or teratoma — Stock Photo
    Testicular cancer or teratoma
    Structure of trachea, light micrograph. — Stock Photo
    Structure of trachea, light micrograph.
    Cancer cells and white blood cells — Stock Photo
    Cancer cells and white blood cells
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer illustration
    Testicular cancer or teratoma — Stock Photo
    Testicular cancer or teratoma
    Cardiac muscle cells — Stock Photo
    Cardiac muscle cells
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Normal White blood cell — Stock Photo
    Normal White blood cell
    Stages of autophagy mechanism — Stock Photo
    Stages of autophagy mechanism
    Structure and shape of basophil — Stock Photo
    Structure and shape of basophil
    Section through the olfactory epithelium — Stock Photo
    Section through the olfactory epithelium
    Visual rendering of Human cells — Stock Photo
    Visual rendering of Human cells
    Illustration of dendritic cell interacting with T-cells on black background. — Stock Photo
    Illustration of dendritic cell interacting with T-cells on black background.
    Duct is lined with pseudostratified epithelium — Stock Photo
    Duct is lined with pseudostratified epithelium
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Cancer cell characteristic — Stock Photo
    Cancer cell characteristic
    Digital artwork of white blood cells attacking red illuminated cancer cell. — Stock Photo
    Digital artwork of white blood cells attacking red illuminated cancer cell.
    Conceptual image of a neuron on black background — Stock Photo
    Conceptual image of a neuron on black background
    Medical illustration of human cell structure on dark background. — Stock Photo
    Medical illustration of human cell structure on dark background.
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer illustration
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration. — Stock Photo
    Active platelets in human blood with erythrocytes and leukocytes, computer illustration.
    Colored scanning electron micrograph of human mesenchymal stem cell. — Stock Photo
    Colored scanning electron micrograph of human mesenchymal stem cell.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Eosinophilia blood smear with numerous eosinophils, digital illustration. — Stock Photo
    Eosinophilia blood smear with numerous eosinophils, digital illustration.
    Cell with pseudopodia — Stock Photo
    Cell with pseudopodia
    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.
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Normal human red blood cell — Stock Photo
    Normal human red blood cell
    Plasma cell, computer illustration. Plasma cells, which are found in the blood and lymph, are mature B lymphocytes (white blood cells) that produce and secrete antibodies during an immune response. — Stock Photo
    Plasma cell, computer illustration. Plasma cells, which are found in the blood and lymph, are mature B lymphocytes (white blood cells) that produce and secrete antibodies during an immune response.
    Coloured scanning electron micrograph of breast cancer cell. — Stock Photo
    Coloured scanning electron micrograph of breast cancer cell.
    Gum tissue with gingivitis — Stock Photo
    Gum tissue with gingivitis
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death. — Stock Photo
    Coloured scanning electron micrograph of 293T cell in early stage of programmed apoptosis cell death.
    Red blood cells — Stock Photo
    Red blood cells