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    Male human flea — Stock Photo
    Male human flea
    Human compact bone tissue, light micrograph. — Stock Photo
    Human compact bone tissue, light micrograph.
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph.
    Human head louse — Stock Photo
    Human head louse
    Transverse section through a leaf showing foveate stomata (light areas on underside of leaf. — Stock Photo
    Transverse section through a leaf showing foveate stomata (light areas on underside of leaf.
    Cross-section of spinal cord, light micrograph. — Stock Photo
    Cross-section of spinal cord, light micrograph.
    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)
    Human smooth muscle, light micrograph. — Stock Photo
    Human smooth muscle, light micrograph.
    Immature parasitic trematode — Stock Photo
    Immature parasitic trematode
    Mucosa of the trachea — Stock Photo
    Mucosa of the trachea
    Light micrograph of a longitudinal section through a healthy arteriole. — Stock Photo
    Light micrograph of a longitudinal section through a healthy arteriole.
    Human blood cells, light micrograph. — Stock Photo
    Human blood cells, light micrograph.
    Liver tissue, light micrograph. Animal tissue. — Stock Photo
    Liver tissue, light micrograph. Animal tissue.
    Hair follicles structure — Stock Photo
    Hair follicles structure
    Young pine tree stem — Stock Photo
    Young pine tree stem
    Light micrograph of human red blood cells (erythrocytes), with two unidentified white blood cells (leucocytes) near the centre. — Stock Photo
    Light micrograph of human red blood cells (erythrocytes), with two unidentified white blood cells (leucocytes) near the centre.
    Unilocular adipose tissue — Stock Photo
    Unilocular adipose tissue
    Colon lining and mucous producing cells — Stock Photo
    Colon lining and mucous producing cells
    Dust mite, light micrograph — Stock Photo
    Dust mite, light micrograph
    Dog roundworm eggs (Toxocara canis), light micrograph. — Stock Photo
    Dog roundworm eggs (Toxocara canis), light micrograph.
    Section through an osteoid osteoma — Stock Photo
    Section through an osteoid osteoma
    Transverse section through the midrib of a fern leaf — Stock Photo
    Transverse section through the midrib of a fern leaf
    Sago palm leaf — Stock Photo
    Sago palm leaf
    Human stomach mucinous adenocarcinoma, computer illustration and light micrograph. — Stock Photo
    Human stomach mucinous adenocarcinoma, computer illustration and light micrograph.
    Basal cell carcinoma — Stock Photo
    Basal cell carcinoma
    Bone marrow cellular structure — Stock Photo
    Bone marrow cellular structure
    Light micrograph of a longitudinal section of plant vascular tissue. — Stock Photo
    Light micrograph of a longitudinal section of plant vascular tissue.
    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).
    Section through a wart — Stock Photo
    Section through a wart
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain. — Stock Photo
    Hepatocyte cells, light micrograph. Hepatocyte cells are the main parenchymal tissue cells of the liver. Haematoxylin and eosin stain.
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of congestion and consolidation, digital illustration and light micrograph.
    Breast tissue showing adenocarcinoma — Stock Photo
    Breast tissue showing adenocarcinoma
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue. — Stock Photo
    Oesophageal cancer, computer illustration and light micrograph of cancer tissue.
    Testicular cancer or teratoma — Stock Photo
    Testicular cancer or teratoma
    Primary ovarian follicle — Stock Photo
    Primary ovarian follicle
    Parotid salivary gland — Stock Photo
    Parotid salivary gland
    Sciatic nerve showing a bundle of nerve fibres — Stock Photo
    Sciatic nerve showing a bundle of nerve fibres
    Light micrograph of a longitudinal section through filiform papillae on the tongue surface. — Stock Photo
    Light micrograph of a longitudinal section through filiform papillae on the tongue surface.
    Thyroid gland showing the follicles — Stock Photo
    Thyroid gland showing the follicles
    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.
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph.
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    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.
    Odontoblasts and the dental pulp — Stock Photo
    Odontoblasts and the dental pulp
    Light micrograph of liver fluke eggs in a fish scale. — Stock Photo
    Light micrograph of liver fluke eggs in a fish scale.
    Lungs cancer, digital illustration showing malignant tumour in lung. — Stock Photo
    Lungs cancer, digital illustration showing malignant tumour in lung.
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    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.
    Section through a wart — Stock Photo
    Section through a wart
    Section through a growing bone — Stock Photo
    Section through a growing bone
    Cross section of human cartilage and bone, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Cross section of human cartilage and bone, light micrograph. Haematoxylin and eosin stain.
    Light micrograph of a section through a lymph node affected by Hodgkin's lymphoma. — Stock Photo
    Light micrograph of a section through a lymph node affected by Hodgkin's lymphoma.
    Human kidney tissue, light micrograph. Haematoxylin and eosin stain. — Stock Photo
    Human kidney tissue, light micrograph. Haematoxylin and eosin stain.
    Cross-section of spinal cord, light micrograph. — Stock Photo
    Cross-section of spinal cord, light micrograph.
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph. — Stock Photo
    Lobar pneumonia in stage of grey hepatisation or late consolidation, digital illustration and light micrograph.
    Breast with lobular carcinoma — Stock Photo
    Breast with lobular carcinoma
    Light micrograph of a longitudinal section through a male pine cone showing the pollen (yellow). — Stock Photo
    Light micrograph of a longitudinal section through a male pine cone showing the pollen (yellow).
    Obelia hydrozoan medusa. Light micrograph (LM) of a medusa (young polyp) from the Obelia geniculata hydroid. — Stock Photo
    Obelia hydrozoan medusa. Light micrograph (LM) of a medusa (young polyp) from the Obelia geniculata hydroid.
    Retina. Light micrograph of a section through the retina showing its 10 layers. — Stock Photo
    Retina. Light micrograph of a section through the retina showing its 10 layers.
    Colon cancer, digital illustration and light micrograph showing colon adenocarcinoma. — Stock Photo
    Colon cancer, digital illustration and light micrograph showing colon adenocarcinoma.