Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Green algae cells background
Candida grown on agar plate
mosquito fern
Trematode parasite under a microscope
Freshwater aquatic zooplankton and algae under microscope view
Photomicrograph of algae, Cosmarium turpinii, a desmid. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Background of mold in the wood of the house.
Dictyota fasciola  algae from Mediterranean rocky coast
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.
Natural agate surfaces, suitable for backgrounds and wallpapers.
Water flea (Moina macrocopa) under microscope view for education
A sunburst sea anemone in a tidal pool on the coast of Newport Beach, California during the winter.
Copepod - micro organism
Leafy Seadragon, Phycodurus eques, from  Western Australia.
Education of chlorella under the microscope in Lab.
Degraded environment, polluted river. water source contaminated with sewage
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.
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
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.
High angle closeup view of a small rock-pool with various colourful seaweeds on a rock platform on the beach on the south coast of NSW near Ulladulla
Haematococcus pluvialis green and cyst algae under microscopic view, empty space - haematocyst, active and resting cells, strong antioxidant astaxanthin
Squash preparation of stained onion root tip cells showing late telophase and metaphase stages of mitosis. Bright field illumination on a Leica microscope, Image taken with the X100 objective lens.  Depth of focus is extremely shallow (less than one micron).  Optimum setting of the aperture for maximum resolution and good contrast. Chromatic aberation is inevitable in light microscopy, especially at this scale of magnification, but has been kept to a minimum in this image.
Backgrounds of Characteristics  of Bacteria and Fungi  for education in Microbiology laboratory.
corn stem micrograph with dye
An image of several large rocks covered in thick green sea grass at low tide.
Anthopleura xanthogrammica, or the giant green anemone, is a species of intertidal sea anemone of the family Actiniidae. Other  names for this anemone include green surf anemone, giant green sea anemone, green anemone, giant tidepool anemone, anemone, and rough anemone.  Salt Point State Park, California.
Photomicrograph of two rotifers. Rapidly rotating cilia at top of heads, internal organs visible. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Microscopic view of phytoplankton
Licmophora sp. is a genus of benthic diatom. It is an epiphyte, which means it must perch on another organism or object for structural stability
Wet shiny seaweed on the Thames estuary
Free Images: "bestof:Bulots 02.jpg fr Crustacé Bulots - Buccinum undatum own Arnaud 25 2010 Buccinum undatum"
An_Interior_View_of_Yeşilköy_Airport_/_İstanbul_Atatürk_Aiport.jpg
Jacob_van_Ruisdael_-_Berglandschap_met_waterval.jpg
Vincent_van_Gogh_-_Portrait_of_Marcelle_Roulin_-_F441a_JH1640.jpg
Thirteen_Essays_of_Guan_Gongming_WDL4681.jpg
Petr3_Konst.jpg
Manon_lescaut_libretto.jpg
Puccini's_Edgar.jpg
Ulysses_S_Grant_by_Rockwood.jpg
Barques_et_pecheurs_N_Ozanne_sans_date.jpeg
Jean_Monnet_portrait_by_Maurice-Quentin_de_La_Tour_-_Legrand_&_Wild_2002_p28_(adjusted).jpg
Jean_Monnet_portrait_by_Maurice-Quentin_de_La_Tour_-_Legrand_&_Wild_2002_p28.png
Untitled_by_Eugène_Atget.jpeg
"And_may_I--May_I--?".jpeg
1873_Beers_Map_of_New_Lots,_Brooklyn,_New_York_City_(East_New_York,_Jamaica_Bay)_-_Geographicus_-_NewLots-beers-1873.jpg
France,_Reims_and_its_cathedral,_1916.jpg
John_William_Waterhouse_-_Touchstone,_The_Jester.jpg
Everything_for_the_garden_(16203275688).jpg
Dreer's_wholesale_price_list_(16598568108).jpg
Dreer's_quarterly_wholesale_price_list_(16544587006).jpg
Dreer's_quarterly_wholesale_price_list_of_vegetable_seeds_flower_seeds_bulbs_aquatics_decorative_plants_hard_plants_tools_implements_etc.,_etc_(16535437216).jpg
Terms of Use   Search of the Day