Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
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.
Freshwater aquatic zooplankton and algae under microscope view
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
Cheyletiella blakei Mite - Small Cat pest view under a microscope
Epithelial Cells in urine sediment.
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.
Demodex folliculorum - parasitic mite on the eyelashes of a human eye, microscope
Trematode parasite under a microscope
Photomicrograph of one celled amoeba. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
close - up of a cat, isolated on white background
Spore bags of helminthosporium contain 8 cells. This disease causes helminthosporiosis of wheat. Soon very small and quite harmful.
Natural agate surfaces, suitable for backgrounds and wallpapers.
Freshwater zooplankton Rotifer or Rotifera Euchlanis by microscope. Wheel animals. Benthic.
plant Stem of Nymphaea tetragona T.S. under light mircoscope with white background
Zooplankton Water Flea Daphnia, microscopic image of crustacea
Cheyletiella blakei Mite - Small Cat pest view under a microscope
Notoedres cati under the microscope. Notoedric mange, also referred to as Feline scabies, is a highly contagious skin infestation caused by an ectoparasitic and skin burrowing mite Notoedres cati.
Copepod with egg sacs. Live specimen. Wet mount, 10X objective, combination of transmitted brightfield illumination.
Microscopic image of urine granular cast and cellular cast, cause of exercise or dehydration Acute tubular necrosis. kidney diseases.
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.
amazing inhabitants of the microworld under a microscope
Taenia Pisiformis Section under light microscope with white background
Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.
Photomicrograph of an ascus with eight ascospores. This preparation was stained with acid fuchsin, which stains the cytoplasm of the ascospores a deep red color. The fungus is an ascomycete, Diplodia corticola, that infects the wood of oak trees, and is one of the causes of oak decline disease.The picture was taken with a microscope equipped with differential interference contrast optical system that gives a three dimensional effect.
Notoedres cati under the microscope. Notoedric mange, also referred to as Feline scabies, is a highly contagious skin infestation caused by an ectoparasitic and skin burrowing mite Notoedres cati.
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Specks of Dust on Microscope Slide. High Magnification
Euglena is a genus of single cell flagellate eukaryotes under microscopic view for study.
Urothelial carcinoma, high grade.  High-grade tumors have an aggressive appearance under a microscope and are assumed invasive in the kidney or ureter.
Free Images: "bestof:Lophiotoma olangoensis 001.jpg en Lophiotoma olangoensis Olivera 2002 a turrid from the family Turridae; Philippines http //www biolib cz/en/image/id104603/"
Carrier-Air-Wing-Seven-performs-a-fly-over-in-formation.jpg
The-Coast-Guard-Cutter-Adak-WPB-1333.jpg
Sailors-aboard-USS-Sides.jpg
Marines-from-Battalion-Landing-Team-23-Special-Purpose-Marine.jpg
An-E2C-Hawkeye-from-the-Tigertails.jpg
Missile-leaves-a-trail-of-smoke-off-the-Vandgrift.jpg
F14B-Tomcat-performs-a-highspeed-pass.jpg
US_Navy_020911-N-9851B-001_USS_Harry_S._Truman_(CVN_75)_raises_the.jpg
US_Navy_020911-N-1058W-001_Sailors_aboard_the_USS_Harry_S._Truman_(CVN_75)_raise_the.jpg
Marines-practice-live-fire-exercises-on-the-fantail-of-the-Mount.jpg
Remigius_van_Leemput_001.jpg
Portret van een stel, waarschijnlijk Isaac Abrahamsz Massa en Beatrix van der Laen Rijksmuseum SK-A-133.jpeg.jpg
Nevrev_d_001.jpeg
SLNSW 51202 Family group.jpg
SLNSW 43508 Family surfers.jpg
Coa Czech Family Jiskra.svg
Cornelis_de_Vos_001.jpg
George_Morland_001.jpg
Valentin_de_Boullogne_001.jpg
Giovanni_Benedetto_Castiglione_001.jpg
Toussaint_Dubreuil_001.jpg
Johannes_Dünz_001.jpg
Pawel_Andrejewitsch_Fedotow_001.jpg
Robert_Feke_001.jpg
Carl_Philipp_Fohr_001.jpg
Jean-Honoré_Fragonard_001.jpg
Anton_Graff_001.jpg
Peter_von_Hess_001.jpg
Jakob_Jordaens_001.jpg
Nicolas_de_Largillière_001.jpg
Pierre Mignard 001.jpg
Giuseppe_Antonio_Petrini_001.jpg
Philipp_Otto_Runge_001.jpg
James_Ward_001.jpg
R._Brakenburg_A_family_on_a_terrace_1691.jpg
SLNSW 73145 Actor George Gee and family.jpg
SLNSW 442589 Family in the rain Circular Quay.jpg
SLNSW 43904 Unidentified lottery winning family.jpg
Michael_Ancher_001.jpg
Frédéric_Bazille_001.jpg
Peter_Johannes_Brandl_003.jpg
Adrien_Dauzats_001.jpg
George_Desmarées_001.jpg
François_Desportes_001.jpg
Asher_Brown_Durand_001.jpg
William_Dyce_001.jpg
Louis_Gauffier_001.jpg
Bartholomeus_van_der_Helst_001.jpg
Johan_Barthold_Jongkind_001.jpg
Marcellus_Laroon_d._J._001.jpg
Johann_Liss_001.jpg
Ernest_Meissonier_001.jpg
Grigorij_Grigorjewitsch_Mjassojedow_001.jpg
William_Sidney_Mount_001.jpg
John_Neagle_001.jpg
Pierre-Cécile_Puvis_de_Chavannes_001.jpg
Louis_Ferdinand_von_Rayski_001.jpg
Sir_Joshua_Reynolds_001.jpg
Christian_Gottlieb_Schick_001.jpg
Johann_Heinrich_Schönfeld_001.jpg
Daniel_Schultz_d._J._001.jpg
Anna_Dorothea_Therbusch_001.jpg
Robert_Tournières_001.jpg
Joseph_Mallord_William_Turner_001.jpg
Marie_Louise_Elisabeth_Vigée-Lebrun_001.jpg
Jean-Baptiste_Wicar_001.jpg
Abraham_van_den_Tempel_001.jpg
1739_JohnSmibert_self_portrait_BermudaGroup_detail_Yale.png
Karel_Maxmilian_Dietrichstein_-_Josef_Hickel_(1773).jpg
SLNSW 33682 Col Barney Allen and family.jpg
SLNSW 33683 Col Barney Allen and family.jpg
Sir_Edward_Burne-Jones_001.jpg
Sébastien_Bourdon_001.jpg
Jan_de_Bray_001.jpg
George_Catlin_001.jpg
Jean-Baptiste_Siméon_Chardin_001.jpg
Francis_Danby_001.jpg
Eugène_Ferdinand_Victor_Delacroix_001.jpg
François_Pascal_Simon_Gérard_001.jpg
Jean-Léon_Gérôme_001.jpg
John_Linnell_001.jpg
Georg_David_Matthieu_001.jpg
Antoine_Pesne_001.jpg
Nicolas_Régnier_001.jpg
Ilja_Jefimowitsch_Repin_001.jpg
Joseph_Karl_Stieler_001.jpg
Nicolas_Tournier_001.jpg
Jan_Antonisz._van_Ravesteyn_001.jpg
Antonio Maria Esquivel 001.jpg
SLNSW 6544 Departure by ship of NSW Governor Sir Philip Game and family.jpg
SLNSW 42628 Japanese steamer arrives The captain with wife and family.jpg
SLNSW 31841 Majoriebanks sic Marjoribanks family of Hamilton formerly Islington.jpg
SLNSW 30693 OHara family Melbourne Street Louth Park moving belongings.jpg
Thomas_Gainsborough_018.jpg
Norditalienischer_Meister_im_Stil_des_Pisanello_001.jpg
Jacopo_da_Ponte_001.jpg
Michael_Lukas_Leopold_Willmann_001.jpg
Population of Briarcliff Manor.svg
Distribution of Russula torulosa.svg
Distribution of Russula illota.svg
Terms of Use   Search of the Day