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Microscopic photo of a thin section of calcareous tufa of Holocene age.

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.

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.

Freshwater Closterium algae (unicellular charophyte green algae) - optical microscope x200 magnification

Cheyletiella blakei Mite - Small Cat pest view under a microscope

Euglena is a genus of single cell flagellate eukaryotes under microscopic view for study.

$Abundant meningococci bacteria observed, with a notably absence of white blood cells in the spinal fluid from a critically ill meningitis patient. Meningococcal meningitis is the term used to describe a bacterial form of meningitis caused by Neisseria meningitidis. This form of meningitis is associated with high morbidity and mortality. \nSometimes the bacteria spread to people who have had close or lengthy contact with a patient with meningococcal disease. Those at increased risk of getting sick include: People in the same household, roommates and anyone with direct contact with the patient’s oral secretions, such as a kissing partner$

plant Pine Cone-Female L.S. under light mircoscope with white background

Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria

Microscopic Rotifer or Rotifera under a microscope, freshwater bentic organism filtering water.

Rhizopus (bread mold) is a genus of common saprophytic fungi,Rhizopus (bread mold) under the microscope.

Natural agate surfaces, suitable for backgrounds and wallpapers.

Licmophora sp. algae, marine and freshwater diatom under microscopic view. Genus of benthic, photosynthetic and epiphyte diatom

Photomicrograph of a freshwater clustering single-celled green algae,

Micrograph of a moss leaf, Dicranum, with elongated cells, and an elongated midrib (costa) that may be the water conducting cells of the leaf, with polarization at 200x.

Microscopic image of dog stomach cardiac region

Aerial view of loyster farm by Ardara, County Donegal - Ireland.

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.

centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification

Quantum Gravity 3d rendered image of a comprehensive exploration of Quantum Gravity theories. String theory, loop quantum gravity (LOG), causal dynamical triangulation, twistor theory, gravitational waves, spacetime, gravity waves, quantum mechanics, quantum entanglement concepts.

background colored macro bubbles of water

Liver Fluke Section under light microscope with white background

Human parasitic amoeba with pseudopodia, 3D illustration

Free Images: "bestof:Clostridium difficile EM.png Obtained after an outbreak this micrograph depicts Gram-positive Clostridium difficile bacteria These C difficile organisms were"

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Layla, Issue 7, April 15, 1924 WDL2845.jpg

Layla, Issue 8, May 15, 1924 WDL2846.jpg

Layla, Issue 9, June 15, 1924 WDL2857.jpg

Layla, Issue 10, July 15, 1924 WDL2858.jpg

Layla, Issue 2, December 1924 WDL2860.jpg

Layla, Issue 3, January 1925 WDL2861.jpg

Layla, Issue 4, February 1925 WDL2862.jpg

Layla, Issue 10, August 1925 WDL3033.jpg

Layla, Issue 2, November 15, 1923 WDL3055.jpg

Layla, Issue 3, December 15, 1923 WDL3056.jpg

Layla, Issue 4, January 15, 1924 WDL342.jpg

Layla, Issue 5, February 15, 1924 WDL452.jpg