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London, UK - July 31, 2018: The buttons of the internet browser app Firefox, surrounded by Safari, Firefox Focus, News and other apps on the screen of an iPhone.
Epithelial Cells in urine sediment.
close - up of a cat, isolated on white background
Trematode parasite under a microscope
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3d fire icon isolated on white
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
An electron image of several nanoparticles made of lipids (liposomes) containing an anticancer drug (doxorubicin)
3d render. Planet earth against the background of a Silver and glowing glow.  Real continent maps  for get from http://www.nasa.gov/
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Photomicrograph of Euglena species. Fresh water, California. Live specimen. Wet mount, 40X objective, transmitted bright field illumination.
Demodex folliculorum - parasitic mite on the eyelashes of a human eye, 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 image showing oxalate crystals from urine sediment, most common cause of kidney stones
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Paramecium caudatum is a genus of unicellular ciliated protozoan and Bacterium under the microscope.
High quality 3D render.
KOH slide preparation of the nail scraping microscopic showed long septated hyphae and numerous arthrospores.
Florence, Italy - July 17, 2011: Close up of an LCD screen showing the logo on the Wikipedia main web page. Wikipedia is a free encyclopedia based on an openly editable model. Google Chrome web browser.
A plant cell is a fundamental unit of plant life, containing various organelles, including the cell wall, chloroplasts, and a large central vacuole, which are unique to plant cells. These cells serve as the building blocks of plants and play essential roles in photosynthesis, growth, and structural support.
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Letter A alphabet Capital on red sphere on white background for design elements
Photomicrograph of one celled amoeba. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
3D fire icon isolated on transparent background. 3d cartoon simple illustration
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Microscopic image of the operculum of a shrimp with possible disease. Research. Study. Laboratory. Aquaculture. Findings of disease in shrimp.
Essen, Germany - February 28, 2011: Part of Wikipedia site in Internet Explorer browser on LCD screen. Wikipedia is a 15 Founded in January 2001 free online encyclopedia in several languages. The German Wikipedia has over a million and the English-language Wikipedia well over three million items.
An electron image of nanoparticles made of lipids containing an anticancer drug, which appears as a crystal inside of the spherical liposomes
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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