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Some amoebas like this one form shells. Shell is composed of bits of rock (sand), diatom shells, and other debris. Fresh water. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Hemiptera wax Cicadellidae insects on wild plants, North China
Plant Galls on a Oak Leaf, Sierra de Guadarrama National Park, Segovia, Castile Leon, Spain, Europe
Colorful seamless pattern with Crystal stones.
Plant tissue Structure, section (tissue) of stem plant tissue under a light microscope.
plant Pine Young Staminate Cone L.S. under light mircoscope with white background
Eriosoma lanigerum, the woolly apple aphid or American blight is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is important pest of apple trees in orchards.
Equine Sarcoids are the most common skin tumour of horses and account for about 40% of all equine cancers. They are associated with the bovine papilloma virus. Horses and ponies, mules, donkeys, zebra, Przewalski horses and exotic asses can all be affected by sarcoids. They are spread by fly bites.
Sea Urchin Fossil.  The close-up image shows a  sea urchin fossil from the jurassic period on white background.
Photomicrograph of rotifer, probably Rotaria rotatoria. Rapidly rotating cilia at top of head, internal organs visible. Green circles are algae. Live specimen. Original image at 40X, wet mount, transmitted brightfield illumination. Indistinct image due to motion blur of live specimen and very shallow depth of field of brightfield illumination.
Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.
Colorful growth with bubbles of yeast and bacteria on a beer and wine making slop bucket left to grow.
Natural agate surfaces, suitable for backgrounds and wallpapers.
Slime molds, as a group, are polyphyletic under the microscope for education.
Oviduct T.S. under light microscope with white background
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.
close - up of a cat, isolated on white background
Close-up of shell seashell Object on a black Background
Cheyletiella blakei Mite - Small Cat pest view under a microscope
A large group of tadpoles (Gavialis gangeticus) clustered in lake water
Copepod with egg sacs. Live specimen. Wet mount, 10X objective, combination of transmitted brightfield illumination.
Host cells with spores (mold) are inside wood under the microscope for education.
Castleman disease describes a group of rare disorders with a wide range of symptoms. People with these conditions have enlarged lymph nodes that have a similar appearance when reviewed under the microscope.
Longitudinal section of a young pinecone showing internal structure, 10x magnification, hematoxylin stain.
Curly marble stone with fashion veins.
Fat cells contain a large lipid droplet (yellow), a nucleus (red) and cell organelles located in the periphery.
Sea Urchin spine fossil.  The close-up image shows a  sea urchin fossil from the jurassic period inside a limestone.
Egg of stick insects - Pseudophasma rufipes
Shell Collection
Free Images: "bestof:Cenchritis nodulosus 002.jpg Cenchritis nodulosus Pfeiffer 1839 a periwinkle from the family Littorinidae; Bahamas http //www biolib cz/en/image/id104562/"
Cenchritis nodulosus 002.jpg
Cenchritis nodulosus 001.jpg
Cenchritis nodulosus 003.jpg
Littoraria cingulata 002.jpg
Bembicia nanum 002.jpg
Bembicium melanostoma 002.jpg
Littorina saxatilis 002.jpg
Naturalis Biodiversity Center - ZMA.MOLL.320220 - Echininus nodulosus (Pfeiffer, 1839) - Littorinidae - Mollusc shell.jpeg
Naturalis Biodiversity Center - ZMA.MOLL.320220 1 - Echininus nodulosus (Pfeiffer, 1839) - Littorinidae - Mollusc shell.jpeg
Echinolittorina paytensis 001.jpg
Littoraria cingulata 001.jpg
Afrolittorina praetermissa 001.jpg
Dermomurex elizabethae 002.jpg
Cellana mazatlandica 002.jpg
Bembicia nanum 001.jpg
Bembicium melanostoma 001.jpg
Bembicium melanostoma 003.jpg
Fissurella nodosa 002.jpg
Cittarium pica 002.jpg
Littorina saxatilis 003.jpg
Duplicaria dussumierii 002.jpg
Obba scrobiculata 002.jpg
Pinaxia versicolor 002.jpg
Liotina peronii 002.jpg
Turbo cailletii 002.jpg
Liotina crenata 002.jpg
Nassarius candens 002.jpg
Nassa serta 002.jpg
Sinum cymba 002.jpg
Potamides conicus 002.jpg
Otopleura nitida 002.jpg
Notocytharella striosa 002.jpg
Sydaphera undulata 002.jpg
Siratus ciboney 002.jpg
Clanculus flosculus 002.jpg
Mesoginella turbinata 002.jpg
Turris ruthae 002.jpg
Conus milneedwardsi 002.jpg
Cymatosyrinx parciplicata 002.jpg
Conus circumcisus 002.jpg
Eunaticina nitida 002.jpg
Trophon geversianus acordonada 002.jpg
Turris omnipurpurata 002.jpg
Conus canonicus 002.jpg
Vexillum taeniatum 002.jpg
Melampus sincaporensis 002.jpg
Cancellaria (Habesolatia) nodulifera 002.jpg
Conus orbignyi elokismenos 002.jpg
Conus ichinoseana 002.jpg
Northia pristis 002.jpg
Pseudodaphnella nexa 002.jpg
Barbatia foliata 002.jpg
Pythia plicata 002.jpg
Eunaticina albosutura 002.jpg
Fissurella nodosa 001.jpg
Eburna glabrata 002.jpg
Mitra inquinata 002.jpg
Cittarium pica 003.jpg
Cittarium pica 001.jpg
Turbo cailletii 001.jpg
Diodora patagonica002.jpg
Dermomurex elizabethae 001.jpg
Fenimorea fucata 001.jpg
Neptunea laticostata 002.jpg
Blasicrura teres 002.jpg
Vexillum funereum 002.jpg
Ergalatax crassulnata 002.jpg
Cancilla armonica 002.jpg
Pustularia globulus globulus 002.jpg
Phos cyanostoma 002.jpg
Patelloida mufria 002.jpg
Orania ficula 002.jpg
Fissurella radiosa tixierae 002.jpg
Eucithara vexillum 002.jpg
Calliostoma scobinatum 002.jpg
Macrochisma tasmaniae 002.jpg
Macrochisma munita 002.jpg
Cosmetalepas africana 002.jpg
Amblychilepas oblonga 002.jpg
Amblychilepas nigrita 002.jpg
Amblychilepas javanicensis 002.jpg
Fissurella latimarginata 002.jpg
Fissurella maxima 002.jpg
Fissurella rosea 002.jpg
Fissurella crassa 002.jpg
Diodora lineata 002.jpg
Diodora elizabethae 002.jpg
Patelloida latistrigata 002.jpg
Niveotectura pallida 002.jpg
Patelloida insignis 002.jpg
Patelloida saccharinoides 002.jpg
Lottia limatula 002.jpg
Lottia luchuana 002.jpg
Lottia dorsuosa 002.jpg
Patelloida striata 002.jpg
Scurria zebrina 002.jpg
Macklintockia scabra 002.jpg
Lottia mixta 002.jpg
Lottia strigatella 002.jpg
Scurria stipulata 002.jpg
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