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Green algae cells background
plant Zea Stem C.S. under light mircoscope with white background
Freshwater aquatic zooplankton and algae under microscope view
Photomicrograph of algae, Cosmarium turpinii, a desmid. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
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.
Bone marrow plasma cells .Plasma cell neoplasms are diseases in which the body makes too many plasma cells. Plasma cell neoplasms can be benign or malignant. Diagnosed with Immunostain CD138 positive.
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
Cheyletiella blakei Mite - Small Cat pest view under a microscope
Photomicrograph of Histological analysis of Intramedullary SOL showing Astrocytoma, WHO grade-4
stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.
Lily leaf c.s. under microscope
Liver Fluke Section under light microscope with white background
Backgrounds of Characteristics and Different shaped Colony of Bacteria and Mold growing on agar plates from Soil samples for education in Microbiology laboratory.
Trematode parasite under a microscope
Photomicrograph of two rotifers. Rapidly rotating cilia at top of heads, internal organs visible. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Haematococcus pluvialis green and cyst algae under microscopic view, empty space - haematocyst, active and resting cells, strong antioxidant astaxanthin
3D cartoon and Gaussian surface models, PDB 6gu2, white background
Natural agate surfaces, suitable for backgrounds and wallpapers.
amazing inhabitants of the microworld under a microscope
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.
Microscopic photo of a thin section of calcareous tufa of Holocene age.
Germ cell tumor of testicle under light microscopy zoom in different ranges
Paps smear: Inflammatory smear with HPV related changes. Cervical cancer. SCC
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.
Background of mold in the wood of the house.
Abstract Crystal background marble shot, nature pattern.
Filtration and water purification scheme contaminated molecules pass through filter layers
Burkitt lymphoma is a form of non-Hodgkin's lymphoma in which cancer starts in immune cells called B-cells. Recognized as a fast growing human tumor, Burkitt lymphoma is associated with impaired immunity and is rapidly fatal if left untreated.
The Microscopic World. Tap water.
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.
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Near_Coolidge_on_Highway_87,_Pinal_County,_Arizona._Migratory_white_cotton_pickers_stopped_by_engine_._._._-_NARA_-_522380.jpg
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Project_366_#229:_160812_View_From_The_Bridge.jpg
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Sacramento,_California._Fifty_to_sixty_families_pay_$1_per_month_ground_rent._No_sanitary_facilities_._._._-_NARA_-_521793.jpg
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Near_Bakersfield,_California._Applicants_for_surplus_food_stamp_grants_by_Farm_Security_Administrati_._._._-_NARA_-_522181.tif
Near_Bakersfield,_California._Applicants_for_surplus_food_stamp_grants_by_Farm_Security_Administrati_._._._-_NARA_-_522177.tif
Near_Bakersfield,_California._Applicants_for_surplus_food_stamp_grants_by_Farm_Security_Administrati_._._._-_NARA_-_522192.tif
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