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Squash preparation of plant cells stained to reveal chromosomes, various stages of mitosis are visible. Bright field illumination, light microscopy. This image was taken with the X40 objective lens. Depth of focus is extremely low at this magnification. Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced. The aperture in this image was optimised for contrast and resolution. Chromatic aberration is inevitable in light microscopy, but has been kept to a minimum in this image.
3d rendering of Human cell or Embryonic stem cell microscope background.
vertical close up of Woman with shingles on the skin she feels very painful
Internal structure of an animal cell, 3d rendering. Section view. Computer digital drawing.
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Microalgae under microscopic view, green algae, cyanobacteria, phytoplankton, diatom, algae mix collage background
Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.
Bacteria of different shapes, cocci and rod-shaped bacilli, 3D illustration in old book vintage style
plant Zea Stem C.S. under light mircoscope with white background
Microscopic image of onion root tip cells undergoing mitosis. Anaphases and metaphases. 1000x magnified
Eczema
Squash preparation of stained onion root tip cells showing various stages of mitosis. Differential interference contrast optics on a Leica microscope, Image taken with the X40 objective lens.  Depth of focus is extremely shallow (just a few microns).  Differential interference contrast results in an optical slice horizontally through the specimen providing maximum possible resolution at this magnification and good contrast. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Freshwater Closterium algae (unicellular charophyte green algae) - optical microscope x200 magnification
Green algae cells background
Diffuse large B-cell lymphoma, or DLBCL, is a cancer that starts in white blood cells called lymphocytes.
Mitosis process, division of cell. Isolated on black background. 3d render
Liver Fluke Section under light microscope with white background
Background of mold in the wood of the house.
corn stem micrograph with dye
Epidermis. Electron microscope micrograph showing a keratinocyte of spinous layer. The epithelial cell has a polygonal shape, central nucleus with nucleolus, cytoplasm full of keratin filament bundles, and numerous dark desmosomes crossing the intercellular spaces.
Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
This is a photomicrograph of cucumber pollen magnified 100 times.
Abs Bubonic plague bacteria - 3d rendered image structure view on black background. \nPlague Infection concept.  Hologram bacteria view.
Enlarge microscopic view of larvae stage of crustacean
plant rape flower cross section under light mircoscope with white background
Micrasterias is a unicellular green algae under the microscope view, phytoplankton
Myxoid liposarcoma.  Myxoid/round cell liposarcoma, or MRCLS, is one of several types of liposarcoma. Liposarcoma is a rare cancer that grows in the cells that store fat in the body. MRCLS usually grows in the arms and legs. These tumors grow slowly, and they can spread to other parts of the body
microscopy micrograph animal, conjugation of Paramecium caudatum, magnification 200X
Portraits of a beautiful young Argentinian woman - Buenos Aires - Argentina
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