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    Colored scanning electron micrograph of pollen grains from marigold flower. — Stock Photo
    Colored scanning electron micrograph of pollen grains from marigold flower.
    Leaf epidermis, light micrograph. Leaf epidermis has small pores, called stomata, which open up for photosynthetic gas exchange and transpiration. — Stock Photo
    Leaf epidermis, light micrograph. Leaf epidermis has small pores, called stomata, which open up for photosynthetic gas exchange and transpiration.
    Scientists holding multiwell plate with chemical solution for analytical testing in laboratory. — Stock Photo
    Scientists holding multiwell plate with chemical solution for analytical testing in laboratory.
    Teacher assisting students in experiment on molecule in laboratory — Stock Photo
    Teacher assisting students in experiment on molecule in laboratory
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Medical researcher examining a new medicine. science student dressed in white lab coat looking through a microscope. — Stock Photo
    Medical researcher examining a new medicine. science student dressed in white lab coat looking through a microscope.
    Light micrograph (LM) showing blood supply to muscle fibers. — Stock Photo
    Light micrograph (LM) showing blood supply to muscle fibers.
    Light micrograph of cardiac callosity. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of cardiac callosity. Haematoxylin and eosin stain.
    Prostate cancer cell, coloured scanning electron micrograph. — Stock Photo
    Prostate cancer cell, coloured scanning electron micrograph.
    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.
    Grandmother helping granddaughter with homework in kitchen at home — Stock Photo
    Grandmother helping granddaughter with homework in kitchen at home
    Female laboratory technician using microscope in lab. — Stock Photo
    Female laboratory technician using microscope in lab.
    Light micrograph of hepatic hemosiderosis. Hemosiderosis is a form of iron overload disorder resulting in the accumulation of hemosiderin. Haematoxylin and eosin stain. — Stock Photo
    Light micrograph of hepatic hemosiderosis. Hemosiderosis is a form of iron overload disorder resulting in the accumulation of hemosiderin. Haematoxylin and eosin stain.
    Young female scientist with microscope in laboratory. — Stock Photo
    Young female scientist with microscope in laboratory.
    Man introducing plate into machine and microscope — Stock Photo
    Man introducing plate into machine and microscope
    University students practicing science experiment in lab — Stock Photo
    University students practicing science experiment in lab
    Illustration of Nipah viruses binding to receptors on human cells, an initial stage of Nipah infection. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore — Stock Photo
    Illustration of Nipah viruses binding to receptors on human cells, an initial stage of Nipah infection. Nipah virus is zoonotic (transmitted to humans from animals) and was first found in Malaysia and Singapore
    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
    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
    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
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample. — Stock Photo
    Colored scanning electron micrograph of activated T lymphocyte from human blood sample.
    Closeup of magnified grey head of flying insect with round convex brown eyes — Stock Photo
    Closeup of magnified grey head of flying insect with round convex brown eyes
    Scientists viewing sample on glass slide under light microscope. — Stock Photo
    Scientists viewing sample on glass slide under light microscope.
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development — Stock Photo
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development
    Helicobacter pylori bacterium — Stock Photo
    Helicobacter pylori bacterium
    Fungal cells revealing sporangium with spores — Stock Photo
    Fungal cells revealing sporangium with spores
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats. They are predatory organism, feeding on other ciliate protozoans, mainly Paramecium — Stock Photo
    Didinium sp. ciliate protozoa, coloured scanning electron micrograph (SEM). These tiny single-celled organisms are found in freshwater and marine habitats. They are predatory organism, feeding on other ciliate protozoans, mainly Paramecium
    Closeup of magnified part of black and brown ant with legs — Stock Photo
    Closeup of magnified part of black and brown ant with legs
    Young child in labcoat looking into a microscope — Stock Photo
    Young child in labcoat looking into a microscope
    House dust mites — Stock Photo
    House dust mites
    Boy and girl working on school work at home — Stock Photo
    Boy and girl working on school work at home
    Carcinoma cell, coloured transmission electron micrograph (TEM). — Stock Photo
    Carcinoma cell, coloured transmission electron micrograph (TEM).
    Kidney glomerulus and podocyte cells — Stock Photo
    Kidney glomerulus and podocyte cells
    Female scientist in protective mask using microscope. — Stock Photo
    Female scientist in protective mask using microscope.
    Young female student using microscope in lab — Stock Photo
    Young female student using microscope in lab
    Ophthalmologist performing eye surgery on female patient in clinic. — Stock Photo
    Ophthalmologist performing eye surgery on female patient in clinic.
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    Closeup of magnified part of black and brown ant on black background — Stock Photo
    Closeup of magnified part of black and brown ant on black background
    University students using digital tablet while doing experiment on microscope in laboratory at college — Stock Photo
    University students using digital tablet while doing experiment on microscope in laboratory at college
    Pollen grain, light micrograph. Pollen grain is the microscopic body that contains the male reproductive cell of a plant. — Stock Photo
    Pollen grain, light micrograph. Pollen grain is the microscopic body that contains the male reproductive cell of a plant.
    Portrait of smiling female teacher wearing protective eyewear, standing behind desk with microscope and test tubes in rack, students in background — Stock Photo
    Portrait of smiling female teacher wearing protective eyewear, standing behind desk with microscope and test tubes in rack, students in background
    Strands of Actinomyces viscosus — Stock Photo
    Strands of Actinomyces viscosus
    Mycobacterium smegmatis bacteria — Stock Photo
    Mycobacterium smegmatis bacteria
    Scientist using laptop at desk in science laboratory — Stock Photo
    Scientist using laptop at desk in science laboratory
    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
    University student doing experiment on microscope in laboratory at college — Stock Photo
    University student doing experiment on microscope in laboratory at college
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree. — Stock Photo
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree.
    Scientists using microscope in laboratory — Stock Photo
    Scientists using microscope in laboratory
    Fungal cells showing sporangium — Stock Photo
    Fungal cells showing sporangium
    Magnified digital illustration of neutrophil cell. — Stock Photo
    Magnified digital illustration of neutrophil cell.
    Male scientist using microscope, close-up. — Stock Photo
    Male scientist using microscope, close-up.
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue — Stock Photo
    Taste buds. Coloured light micrograph of a section through the tongue, showing taste buds (round, purple). The taste buds are within papillae (projections) located on the surface of the tongue
    Female scientist using microscope. — Stock Photo
    Female scientist using microscope.
    Myelinated nerve fibres — Stock Photo
    Myelinated nerve fibres
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung — Stock Photo
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung
    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.
    Teenage girl using digital tablet while standing by desk in lab — Stock Photo
    Teenage girl using digital tablet while standing by desk in lab
    Tendon, coloured scanning electron micrograph (SEM), showing bundles of collagen fibres. The parallel alignment of the fibres make tendons inelastic but flexible. Tendons attach muscle to bone. Magnification: x5000 when printed at 10 centimetres wide — Stock Photo
    Tendon, coloured scanning electron micrograph (SEM), showing bundles of collagen fibres. The parallel alignment of the fibres make tendons inelastic but flexible. Tendons attach muscle to bone. Magnification: x5000 when printed at 10 centimetres wide
    Scientist viewing sample on glass slide before light microscope. — Stock Photo
    Scientist viewing sample on glass slide before light microscope.
    Teenage girl experimenting on microscope in laboratory at university — Stock Photo
    Teenage girl experimenting on microscope in laboratory at university