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    Microscope in laboratory on blue background. — Stock Photo
    Microscope in laboratory on blue background.
    Students in chemistery science class — Stock Photo
    Students in chemistery science class
    Cells undergoing mitosis — Stock Photo
    Cells undergoing mitosis
    Light micrograph of shoot meristem. This is the tissue in most plants containing undifferentiated cells. Meristematic cells give rise to various organs of a plant and are responsible for growth. — Stock Photo
    Light micrograph of shoot meristem. This is the tissue in most plants containing undifferentiated cells. Meristematic cells give rise to various organs of a plant and are responsible for growth.
    Escherichia coli bacteria — Stock Photo
    Escherichia coli bacteria
    Scientific laboratory researcher using test tube and microscope. — Stock Photo
    Scientific laboratory researcher using test tube and microscope.
    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).
    Female scientists working in laboratory. — Stock Photo
    Female scientists working in laboratory.
    Test tubes and Petri dishes in pathogenic laboratory. — Stock Photo
    Test tubes and Petri dishes in pathogenic laboratory.
    Cells of brewer yeast — Stock Photo
    Cells of brewer yeast
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Scientist examining bacterial sample under microscope. — Stock Photo
    Scientist examining bacterial sample under microscope.
    Pollen grains of a common daisy — Stock Photo
    Pollen grains of a common daisy
    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines — Stock Photo
    Acanthocystis. Coloured scanning electron micrograph (SEM) of a centrohelid heliozoan with tangential plate-scales and radial spines
    Lymphoma cancer cell — Stock Photo
    Lymphoma cancer cell
    Scientists examining skull in lab — Stock Photo
    Scientists examining skull in lab
    Blood clotting in an ovarian follicle — Stock Photo
    Blood clotting in an ovarian follicle
    Adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital — Stock Photo
    Adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital
    Fractured myelinated nerve fibres — Stock Photo
    Fractured myelinated nerve fibres
    Female scientist taking sample from culture in Petri dish. — Stock Photo
    Female scientist taking sample from culture in Petri dish.
    Adult female doctor in surgical uniform and sterile mask looking away while sitting in clinic — Stock Photo
    Adult female doctor in surgical uniform and sterile mask looking away while sitting in clinic
    Unilocular adipose tissue — Stock Photo
    Unilocular adipose tissue
    Developing pig eye — Stock Photo
    Developing pig eye
    Cross-section of spinal cord, light micrograph. — Stock Photo
    Cross-section of spinal cord, light micrograph.
    Scorpion fly foot — Stock Photo
    Scorpion fly foot
    Kidney glomerulus and podocyte cells — Stock Photo
    Kidney glomerulus and podocyte cells
    Section through a nasal polyp — Stock Photo
    Section through a nasal polyp
    Magnified digital illustration of mast cell. — Stock Photo
    Magnified digital illustration of mast cell.
    Light micrograph of liver fluke eggs in a fish scale. — Stock Photo
    Light micrograph of liver fluke eggs in a fish scale.
    Staphylococcus bacteria cluster — Stock Photo
    Staphylococcus bacteria cluster
    Schizosaccharomyces pombe yeast — Stock Photo
    Schizosaccharomyces pombe yeast
    Hyaline cartilage, a semi-rigid connective tissue — Stock Photo
    Hyaline cartilage, a semi-rigid connective tissue
    Laboratory worker pipetting liquid into microcentrifuge tube. — Stock Photo
    Laboratory worker pipetting liquid into microcentrifuge tube.
    Cat flea head — Stock Photo
    Cat flea head
    Female researcher using light microscope for examining stem cells in culture jar. — Stock Photo
    Female researcher using light microscope for examining stem cells in culture jar.
    Light micrograph of red blood cells (erythrocytes, red) in a blood vessel. — Stock Photo
    Light micrograph of red blood cells (erythrocytes, red) in a blood vessel.
    Hair shafts growing from human skin — Stock Photo
    Hair shafts growing from human skin
    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.
    Simple squamous epithelium, digital illustration. — Stock Photo
    Simple squamous epithelium, digital illustration.
    Kidney glomerulus and podocyte cells — Stock Photo
    Kidney glomerulus and podocyte cells
    Male scientist in protective mask using microscope. — Stock Photo
    Male scientist in protective mask using microscope.
    Scientist examining specimen under microscope during clinical trial in laboratory. — Stock Photo
    Scientist examining specimen under microscope during clinical trial in laboratory.
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles. — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles.
    Side view of orange fluffy flying incest with brown antennae and ornamental large eyes — Stock Photo
    Side view of orange fluffy flying incest with brown antennae and ornamental large eyes
    University students doing experiment on microscope in laboratory at college — Stock Photo
    University students doing experiment on microscope in laboratory at college
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Portrait of teenage girl with arms crossed standing by desk in lab — Stock Photo
    Portrait of teenage girl with arms crossed standing by desk in lab
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs — Stock Photo
    Trachea lining. Coloured transmission electron micrograph (TEM) of a longitudinal section through the lining of the trachea (windpipe), which links the larynx (voicebox) to the lungs
    Varicella zoster virus particle — Stock Photo
    Varicella zoster virus particle
    Light micrograph of Aspergillus sp. Fungus. — Stock Photo
    Light micrograph of Aspergillus sp. Fungus.
    Scientists working in laboratory with computer and microscope. — Stock Photo
    Scientists working in laboratory with computer and microscope.
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Lime tree stem — Stock Photo
    Lime tree stem
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium
    Lime tree stem — Stock Photo
    Lime tree stem
    Colored scanning electron micrograph image of tooth dentine, mineralised connective tissue found under tooth enamel. — Stock Photo
    Colored scanning electron micrograph image of tooth dentine, mineralised connective tissue found under tooth enamel.
    Leukaemia cells in a patient with Bloom's syndrome, coloured transmission electron micrograph (TEM). — Stock Photo
    Leukaemia cells in a patient with Bloom's syndrome, coloured transmission electron micrograph (TEM).
    Close-up of light microscope lenses on white background. — Stock Photo
    Close-up of light microscope lenses on white background.
    Vaccinia virus particle — Stock Photo
    Vaccinia virus particle
    Focused adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital — Stock Photo
    Focused adult female doctor in sterile mask and ornamental medical cap looking through surgical microscope against crop coworker in hospital