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from article Forest ecosystem
Forest in Moran State Park on Orcas Island, Washington. (Credit: Chris Willig)
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Image
from article Forest ecosystem
Forest fire in No Name Creek area of Colorado. (Credit: Andrea Booher/FEMA)
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from article Forest ecosystem
Puma and cub in forest. (Credit: Grant Faint/Stockbyte/Getty Images)
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from article Forest ecosystem
Conceptual model of elemental cycling in a terrestial ecosystem, emphasizing the presence and activities of arthropod consumers. The indirect regulation of elemental movement by arthropods is indicated by the hourglass-shaped valves on these flows.…
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from article Forest ecosystem
The southern pine beetle (Dendroctonus frontalis) is a destructive insect pest of coniferous forests in the southern United States. (Credit: U.S. Forest Service)
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from article Forest ecosystem
Belowground food web. (Credit: Elaine Ingham)
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from article Vampyromorpha
Vampyroteuthis infernalis (vampire squid) living in the oxygen-minimum zone of Monterey Bay, California, at depths of 600–900 m (1970–2950 ft). (Photo courtesy of Kim Reisenbichler, Monterey Bay Aquarium Research Institute, Moss Landing, CA)
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from article Vampyromorpha
Vampyroteuthis infernalis (vampire squid) showing sensory filaments and photophores (light organs).
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from article Civet
Owston's palm civet (Chrotogale owston). (Photo copyright © by Mark Kostich)
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from article Patellogastropoda
Whitecap limpet (Acmaea mitra). (Photo by Douglas Eernisse)
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from article Patellogastropoda
Ribbed Mediterranean limpet (Patella ferruginea). (Photo by Georgina Rivera Ingraham)
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from article Patellogastropoda
Radula of the patellogastropod Notoacmea scapha.
Image
from article Beef cattle production
Angus bull with overall carcass merit. (Credit: Jim Koch/Agricultural Research Service, U.S. Department of Agriculture)
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from article Beef cattle production
Brahman (zebu) bull (Bos indicus). (Credit: Scott Bauer/Agricultural Research Service, U.S. Department of Agriculture)
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from article Beef cattle production
An exemplary purebred Hereford bull. (Credit: Michael MacNeil/Agricultural Research Service, U.S. Department of Agriculture)
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from article Beef cattle production
A group of Simmental cows. (Credit: Iowa Beef Industry Council)
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from article Beef cattle production
Three Charolais heifers. (Credit: Darcy Vial/Farm Service Agency, U.S. Department of Agriculture)
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from article Beef cattle production
In order to attain market weight, cattle are fed often in feedlots. (Credit: Dave Hughes/Getty Images)
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from article Beef cattle production
In the United States, beef animals used for food must be inspected extensively pre- and postmortem by federal officials. (Credit: Bob Nichols/U.S. Department of Agriculture)
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from article Cheese
Cheese being placed in brining tank (salt bath). (Credit: Westend61/Getty Images)
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from article Cheese
Cheese ripening. (Credit: Tom Paiva Photography/Blend Images)
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from article Cheese
Swiss cheese. (Credit: Tom Paiva Photography/Blend Images)
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from article Fruit, tree
Apple trees growing in an orchard. (Photo by Charles Rondeau)
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from article Fruit, tree
Apple scab on fruit. This disease, caused by the fungus Venturia inaequalis, leads to unsightly blemishes on ripe apples. (Photo courtesy of the University of Georgia Plant Pathology Archive)
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from article Fruit, tree
Brown rot, caused by the fungus Monilinia fructicola, on a peach. (Photo by Jonas Janner Hamann, Universidade Federal de Santa Maria, Brazil)
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from article Fruit, tree
Fire blight, caused by the bacterium Erwinia amylovora, on apple fruits and leaves. (Photo courtesy of the University of Georgia Plant Pathology Archive)
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from article Fruit, tree
Blue mold (Penicillium italicum) on a rotting orange. (Photo by G. L. Barron)
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from article Bicosoecida
A bicosoecid, Codomonas annulata.
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from article Rhizocephala
Loxothylacus texanus (arrow) attached to the abdomen of the blue crab (Callinectes sapidus). (After E. G. Reinhard, Parasitic castration of Callinectes, Exp. Parasitol., 5:79–107, 1956)
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from article Belladonna
Close-up view of the belladonna plant (Atropa belladonna), showing the leaves and berries, which are toxic. (Credit: Leo Michels)
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from article Polychaeta
Examples of polychaetes. (a) Platynereis dumerilii antipoda. (b) Branchiomma sp. (c) Arenicola bombayensi. (After P. L. Beesley et al., 2000)
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from article Polychaeta
Platynereis dumerilii antipoda, showing the antero-dorsal end with the pharynx everted. (After P. L. Beesley et al., 2000)
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from article Polychaeta
Hololepidella laingensis; scanning electron microscope view of the anterior end with the pharynx everted. An: antennae; Pa: palps; Prb: proboscis; Prs: prostomium; TeC: tentacular cirrus. Numbers refer to the segments of the trunk. Magnification,…
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from article Polychaeta
Gastrolepidia clavigera; scanning electron microscope view of the anterior end. Mo: mouth; Ja: jaw; Pa: palps; Prb: proboscis. Magnification, 30×.
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from article Polychaeta
Gastrolepidia clavigera, scanning electron microscope view of the two first parapodia (Pa1, Pa2). Ch: chaetae; Ci: cirrus; Nop: notopodium; Nep: neuropodium. Magnification, 40×.
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from article Polychaeta
Section through a polychaete. (After E. E. Ruppert and R. D. Barnes, Invertebrate Zoology, Saunders College Publishing, Orlando, 1994)
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from article Chaetonotida
Marine gastrotrichs of the order Chaetonotida; dorsal views. (a) Xenotrichula (courtesy of W. D. Hummon). (b) Chaetonotus (after W. D. Hummon, Intertidal marine Gastrotricha from Colombia, Bull. Mar. Sci., 24:396–408, 1974).
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from article Lychee
Fruit and leaves of lychee (Litchi chinensis). (Photo courtesy of Forest and Kim Starr)
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from article Skink
Five-lined skink (Plestiodon fasciatus; formerly Eumeces fasciatus). (Credit: George W. Robinson; copyright © California Academy of Sciences)
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from article Food allergy
Children (under the age of 18) who experience food allergies are more likely to experience other allergic conditions, including asthma (black), eczema/skin allergy (blue), and respiratory allergy (green). (Credit: National Center for Health…
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from article Food allergy
Allergic responses (immunological responses mediated by the IgE class of immunoglobulins) can be caused by certain foods. In a person with allergies, mast cells will be coated with IgE against one or a few antigens (allergens) that, upon entering…
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from article Food allergy
Peanuts are a common trigger of food allergies in both adults and children. (Credit: Christian Jung/Shutterstock)
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from article Ephemeroptera
Ephemeroptera. (a) Mayfly, adult male, Hexagenia sp., in usual resting position (after A. H. Morgan, Field Book of Ponds and Streams, G. Putnam's Sons, 1930). (b) Mayfly, subadult male, Callibaetis sp., newly emerged from water, standing on surface…
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from article Prairie dog
Black-tailed prairie dogs (Cynomys ludovicianus). (Photo by Ron Singer, U.S. Fish and Wildlife Service)
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from article Percopsiformes
Trout-perch (Percopsis omiscomaycus). (Photo by Konrad P. Schmidt)
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from article Percopsiformes
Pirate perch (Aphredoderus sayanus). (Photo by Konrad P. Schmidt)
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from article Percopsiformes
Ozark cavefish (Amblyopsis rosae). (Photo courtesy of U.S. Fish and Wildlife Service)
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from article Prosobranchia
Common gastropods. (Top left) Murex troscheli. (Middle) Conus gloriamaris. (Top right) Lambis crocata. (Bottom) Angaria vicdani.
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from article Sauropterygia
Ceresiosaurus calcagnii, ventral view.
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from article Zebu
Gray Brahman bull (Bos indicus). (Photo courtesy of Salinas Ranch, Carmine, Texas)
