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    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Fractured pancreas tissue — Stock Photo
    Fractured pancreas tissue
    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).
    Adenocarcinoma of the thyroid gland — Stock Photo
    Adenocarcinoma of the thyroid gland
    Coloured transmission electron micrograph (TEM) of a section through a Langerhans cell from the epidermis of the skin. — Stock Photo
    Coloured transmission electron micrograph (TEM) of a section through a Langerhans cell from the epidermis of the skin.
    Lung tissue, coloured transmission electron micrograph (TEM). — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM).
    Computer illustration showing different stages of release of malaria merozoites from a red blood cell. — Stock Photo
    Computer illustration showing different stages of release of malaria merozoites from a red blood cell.
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a section through a vein in the liver, which is filled with red blood cells (erythrocytes, red).
    Basal cell carcinoma — Stock Photo
    Basal cell carcinoma
    Hypodermic needle (26 gauge) and human blood, coloured scanning electron micrograph (SEM). — Stock Photo
    Hypodermic needle (26 gauge) and human blood, coloured scanning electron micrograph (SEM).
    Human sperm cell, coloured scanning electron micrograph (SEM). — Stock Photo
    Human sperm cell, coloured scanning electron micrograph (SEM).
    Ruptured venule running through fatty tissue — Stock Photo
    Ruptured venule running through fatty tissue
    Coloured scanning electron micrograph (SEM) of stubble on a man's face. — Stock Photo
    Coloured scanning electron micrograph (SEM) of stubble on a man's face.
    Scanning electron micrograph (SEM) of a PC12 neurone in culture. — Stock Photo
    Scanning electron micrograph (SEM) of a PC12 neurone in culture.
    Coloured scanning electron micrograph (SEM) of human myeloid white blood cells found in bone marrow. — Stock Photo
    Coloured scanning electron micrograph (SEM) of human myeloid white blood cells found in bone marrow.
    Anatomy of human ear with membranous labyrinth — Stock Photo
    Anatomy of human ear with membranous labyrinth
    Dense connective tissue, coloured scanning electron micrograph (SEM). — Stock Photo
    Dense connective tissue, coloured scanning electron micrograph (SEM).
    Adenocarcinoma of the endometrium — Stock Photo
    Adenocarcinoma of the endometrium
    Microscopic cross section view of HIV virus — Stock Photo
    Microscopic cross section view of HIV virus
    Section through bone marrow — Stock Photo
    Section through bone marrow
    Nerve bundle from the sciatic nerve — Stock Photo
    Nerve bundle from the sciatic nerve
    Lactating breast tissue — Stock Photo
    Lactating breast tissue
    Adenocarcinoma of the endometrium — Stock Photo
    Adenocarcinoma of the endometrium
    Stem cell research — Stock Photo
    Stem cell research
    Adenocarcinoma of the thyroid gland — Stock Photo
    Adenocarcinoma of the thyroid gland
    Ruptured venule running through fatty tissue — Stock Photo
    Ruptured venule running through fatty tissue
    Visual rendering of Cells — Stock Photo
    Visual rendering of Cells
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Mucosa of the trachea — Stock Photo
    Mucosa of the trachea
    Section through bone marrow — Stock Photo
    Section through bone marrow
    Visual rendering of Cells — Stock Photo
    Visual rendering of Cells
    Nerve bundle from the sciatic nerve — Stock Photo
    Nerve bundle from the sciatic nerve
    Cell layers of the retina — Stock Photo
    Cell layers of the retina
    Blood cells in a blood vessel — Stock Photo
    Blood cells in a blood vessel
    Ascaris Roundworm ovaries — Stock Photo
    Ascaris Roundworm ovaries
    Fractured pancreas tissue — Stock Photo
    Fractured pancreas tissue
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Pathological anatomy of atherosclerosis — Stock Photo
    Pathological anatomy of atherosclerosis
    Daisy pollen grain — Stock Photo
    Daisy pollen grain
    Cut in an artery seen from its interior — Stock Photo
    Cut in an artery seen from its interior
    Human egg cell — Stock Photo
    Human egg cell
    Daisy pollen grain — Stock Photo
    Daisy pollen grain
    Atherosclerosis harming blood vessel — Stock Photo
    Atherosclerosis harming blood vessel
    Activated platelets in blood vessel — Stock Photo
    Activated platelets in blood vessel
    Secondary liver cancer — Stock Photo
    Secondary liver cancer
    Undifferentiated stem cells — Stock Photo
    Undifferentiated stem cells
    Microvilli from the small intestine — Stock Photo
    Microvilli from the small intestine
    Two-cell embryo — Stock Photo
    Two-cell embryo
    Four-cell embryo — Stock Photo
    Four-cell embryo
    Blood stream and artery walls — Stock Photo
    Blood stream and artery walls
    Normal human red blood cell — Stock Photo
    Normal human red blood cell
    Red blood cells — Stock Photo
    Red blood cells
    Activated platelets in blood vessel — Stock Photo
    Activated platelets in blood vessel
    Fertilization showing sperm fertilizing an egg — Stock Photo
    Fertilization showing sperm fertilizing an egg
    Red and white blood cells — Stock Photo
    Red and white blood cells
    Normal blood cells in artery — Stock Photo
    Normal blood cells in artery
    Sperm fertilising an egg — Stock Photo
    Sperm fertilising an egg
    Microvilli from the small intestine — Stock Photo
    Microvilli from the small intestine
    Animal cell structure — Stock Photo
    Animal cell structure