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    Appendix showing appendicitis — Stock Photo
    Appendix showing appendicitis
    Lime tree stem — Stock Photo
    Lime tree stem
    Lung cancer, digital illustration and light micrograph of cancerous tissue. — Stock Photo
    Lung cancer, digital illustration and light micrograph of cancerous tissue.
    High power light micrograph (LM) of a section through the gills of a mushroom, Agaricus sp. (formerly Psalliota sp.). — Stock Photo
    High power light micrograph (LM) of a section through the gills of a mushroom, Agaricus sp. (formerly Psalliota sp.).
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph.
    Tapeworm of cattle and other grazing animals, light micrograph. — Stock Photo
    Tapeworm of cattle and other grazing animals, light micrograph.
    Human tendon, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Human tendon, light micrograph. Haematoxylin and eosin stain.
    Human stomach adenocarcinoma, computer illustration and light micrograph. — Stock Photo
    Human stomach adenocarcinoma, computer illustration and light micrograph.
    Large thrombus formation — Stock Photo
    Large thrombus formation
    Grey matter of the cerebellum — Stock Photo
    Grey matter of the cerebellum
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa. — Stock Photo
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa.
    Light micrograph of a section through the surface of a tonsil showing the stratified squamous epithelium (pink) and underlying lymphoid tissue. — Stock Photo
    Light micrograph of a section through the surface of a tonsil showing the stratified squamous epithelium (pink) and underlying lymphoid tissue.
    Longitudinal section through smooth muscle — Stock Photo
    Longitudinal section through smooth muscle
    Leaf epidermis, light micrograph. The leaf epidermis under light microscope view has small pores, called stomata, which open up for photosynthetic gas exchange and transpiration. — Stock Photo
    Leaf epidermis, light micrograph. The leaf epidermis under light microscope view has small pores, called stomata, which open up for photosynthetic gas exchange and transpiration.
    Testicular cancer or teratoma — Stock Photo
    Testicular cancer or teratoma
    Odontoblasts and the dental pulp — Stock Photo
    Odontoblasts and the dental pulp
    Seminiferous tubules and lending cells — Stock Photo
    Seminiferous tubules and lending cells
    Digital illustration and light micrograph of squamous cell carcinoma of lung. — Stock Photo
    Digital illustration and light micrograph of squamous cell carcinoma of lung.
    Hepatic bile duct infected with cocidian protozoa — Stock Photo
    Hepatic bile duct infected with cocidian protozoa
    Light micrograph of a colon biopsy from a colonoscopy. The pathology report describes normal colonic mucosa fragment with colic glands. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of a colon biopsy from a colonoscopy. The pathology report describes normal colonic mucosa fragment with colic glands. Haematoxylin and eosin stain.
    Light micrograph of a longitudinal section through a healthy arteriole. — Stock Photo
    Light micrograph of a longitudinal section through a healthy arteriole.
    Epithelium of a foliate papillae of the tongue — Stock Photo
    Epithelium of a foliate papillae of the tongue
    Areolar connective tissue, light micrograph. — Stock Photo
    Areolar connective tissue, light micrograph.
    Section through a wart — Stock Photo
    Section through a wart
    Skull affected by Paget's disease — Stock Photo
    Skull affected by Paget's disease
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Section of a muscular artery — Stock Photo
    Section of a muscular artery
    Bile duct cellular sctructure — Stock Photo
    Bile duct cellular sctructure
    Human stomach adenocarcinoma, computer illustration and light micrograph. — Stock Photo
    Human stomach adenocarcinoma, computer illustration and light micrograph.
    Section of a flower bud — Stock Photo
    Section of a flower bud
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla). — Stock Photo
    Light micrograph (LM). Longitudinal section through the thallus and sporangium of a liverwort (Pellia epiphylla).
    Trachea lined with ciliated columnar epithelium — Stock Photo
    Trachea lined with ciliated columnar epithelium
    Colon cancer, digital illustration and light micrograph showing colon adenocarcinoma. — Stock Photo
    Colon cancer, digital illustration and light micrograph showing colon adenocarcinoma.
    Undifferentiated pleomorphic sarcoma of bone — Stock Photo
    Undifferentiated pleomorphic sarcoma of bone
    Wilms tumour of the kidney — Stock Photo
    Wilms tumour of the kidney
    Light micrograph of liver fluke eggs in a fish scale. — Stock Photo
    Light micrograph of liver fluke eggs in a fish scale.
    Liver tissue, light micrograph. Animal tissue. — Stock Photo
    Liver tissue, light micrograph. Animal tissue.
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue. — Stock Photo
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue.
    Young pine tree stem — Stock Photo
    Young pine tree stem
    Lung cancer, digital illustration and light micrograph of cancerous tissue. — Stock Photo
    Lung cancer, digital illustration and light micrograph of cancerous tissue.
    Lung cancer, digital illustration and light micrograph showing lung adenocarcinoma. — Stock Photo
    Lung cancer, digital illustration and light micrograph showing lung adenocarcinoma.
    Helianthus stem. Light micrograph (LM) of stem of perennial sunflower (Helianthus sp.) in cross-section showing vascular bundles (green, yellow). Vascular tissues transport water and dissolved substances inside plant — Stock Photo
    Helianthus stem. Light micrograph (LM) of stem of perennial sunflower (Helianthus sp.) in cross-section showing vascular bundles (green, yellow). Vascular tissues transport water and dissolved substances inside plant
    Section through a full term placenta — Stock Photo
    Section through a full term placenta
    Onion cells undergoing mitosis — Stock Photo
    Onion cells undergoing mitosis
    Light micrograph (LM) of longitudinal section through a fetal finger tip to show the developing nail. — Stock Photo
    Light micrograph (LM) of longitudinal section through a fetal finger tip to show the developing nail.
    Midrib of a tea leaf — Stock Photo
    Midrib of a tea leaf
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow) — Stock Photo
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow)
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of red hepatisation, digital illustration and light micrograph.
    Midrib of a tea leaf — Stock Photo
    Midrib of a tea leaf
    Section through a Pacinian corpuscle — Stock Photo
    Section through a Pacinian corpuscle
    Light micrograph of blood cells (mainly B cells, dark purple) in the liver of a patient with lymphocytic leukaemia. — Stock Photo
    Light micrograph of blood cells (mainly B cells, dark purple) in the liver of a patient with lymphocytic leukaemia.
    Light micrograph of a waterflea, Daphnia pulex, a small freshwater crustacean. — Stock Photo
    Light micrograph of a waterflea, Daphnia pulex, a small freshwater crustacean.
    Light micrograph of a section through an aeciospore from a Puccinia sp. rust fungus. — Stock Photo
    Light micrograph of a section through an aeciospore from a Puccinia sp. rust fungus.
    Adenocarcinoma of the endometrium — Stock Photo
    Adenocarcinoma of the endometrium
    Section through the cerebellum of the brain — Stock Photo
    Section through the cerebellum of the brain
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa. — Stock Photo
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa.
    Platelets in blood vessel — Stock Photo
    Platelets in blood vessel
    Hair follicles structure — Stock Photo
    Hair follicles structure
    Helianthus stem. Light micrograph (LM) of stem of perennial sunflower (Helianthus sp.) in cross-section showing vascular bundles (green, yellow). Vascular tissues transport water and dissolved substances inside plant — Stock Photo
    Helianthus stem. Light micrograph (LM) of stem of perennial sunflower (Helianthus sp.) in cross-section showing vascular bundles (green, yellow). Vascular tissues transport water and dissolved substances inside plant
    Purkinje cells and their dendritic processes — Stock Photo
    Purkinje cells and their dendritic processes