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Green algae cells background
plant Zea Stem C.S. under light mircoscope with white background
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.
Micrograph of amoeba.  Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live animal, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
forming of underskin cellulite illustration
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.
Artificial Intelligence: Simplified image of the principles of convolutional neural networks with input, hidden, output layers. It classifies geometric forms - in this case a cube
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.
Cross-section illustration of human skin, composed of three primary layers: epidermis, dermis and subcutis.
Natural agate surfaces, suitable for backgrounds and wallpapers.
Lily leaf c.s. under microscope
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.
Lymphocyte. Immune cell. Antibody-producing cell. B-lymphocyte or T-lymphocyte in blood with red blood cells.Medical science background.
Liver Fluke Section under light microscope with white background
Cross section leaf of plant under the light microscope view for botany education.
Urothelial carcinoma, high grade.  High-grade tumors have an aggressive appearance under a microscope and are assumed invasive in the kidney or ureter.
Microscopic view of a blood smear from leukemia patient showing many abnormal white blood cells, blood cancer cells or leukemia cells.
Abstract Crystal background marble shot, nature pattern.
Epithelial Cells in urine sediment.
online job search concept
3D cartoon and Gaussian surface models with a putative membrane shown, PDB 4p02, white background
Photomicrograph of algae, Cosmarium turpinii, a desmid. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Eggs of helminth and Finding parasites in feces, analyze by microscope in laboratory.
Digital Dispersed corona virus on petri dish. Animation of multiplication of CORONA VIRUS COVID-19
A micrograph of nanoparticles made of lipids containing an anticancer drug. The drug appears as a crystal inside of the spherical liposomes
Cellular angiofibroma (CAF) is a rare, benign tumor of superficial soft tissues.
3d render of cerebral organoids
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.
Longitudinal space planning.  Vehicle circulation directions are marked with arrows.
Geometric shapes puzzle with geometric objects on textured paper.
Free Images: "bestof:Flagellum base diagram-fr.svg see en talk page A Gram-negative bacterial flagellum A flagellum plural flagella is a long slender projection from the cell butt"
natter-snake-green-tree-sniffer-284055.jpg
Lasioglossum_mestrei,_female,_face_2012-06-27-17.35.46_ZS_PMax.jpg
Centris_fasciata,_male,_top_2_2012-06-25-15.11.28_ZS_PMax.jpg
Centris_fasciata,_male,_rt._side_2012-06-27-16.38.08_ZS_PMax.jpg
Exomalopsis_pulchella,_face_2012-06-28-16.18.30_ZS_PMax.jpg
Exomalopsis_similis,_female,_back_2012-07-03-14.48.58_ZS_PMax.jpg
Hoplisoides_xerophilus,_U,_face,_Cuba_2012-09-27-15.13.04_ZS_PMax.jpg
Tachyspex_alayoi,_Female,_Face,_Guantanamo_Bay,_Cuba_2012-11-01-18.07.28_ZS_PMax.jpg
Lasioglossum_mestrei,_female,_side_2012-06-27-17.46.24_ZS_PMax.jpg
Oxybelus_analis,_female,_side,_Guantanamo_Bay,_Cuba_2012-11-01-17.51.38_ZS_PMax.jpg
Melissodes_communis,_male,_side_2012-07-02-17.10.44_ZS_PMax.jpg
Melissodes_communis,_male,_back_2012-07-02-17.00.42_ZS_PMax.jpg
Pygmy hippopotamus hungry.jpg
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Prokaryote cell diagram international.svg
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Leishmaniasis life cycle diagram ru.svg
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portugues-sexo_alemão-sex_ingles-sex_africano-seks_russo-секс_albanes-sex_chines-性別_bulgaro-секс_croata-spol_gales-rhyw_coreano-섹스_frances-sexe_japones-セックス_filandes-sukupuolesta_arabe-الجنس_prontos_ai_tens_em_15_linguas_a_p.jpg
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T1 4 21 Polytope E6 Coxeter plane.svg
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Mesosome formation.svg
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WLE Participating Countries World Map.svg
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Internet Censorship and Surveillance World Map.svg
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