79 résultats pour "diète"
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Cat - biology.
D Coat Colors The domestic cat's original coat color was probably grayish-brown with darker tabby stripes, a color that provides excellent camouflage in a variety of environments. Allother coat colors and patterns are the result of genetic mutations; for example, solid coat colors such as black and blue are the result of a gene that suppresses tabbystripes; an orange coat is the result of a gene that transforms black pigment to orange; and a solid white coat is the result of a gene that complet...
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Primate - biology.
The primate order includes a handful of species that live entirely on meat (carnivores) and also a few that are strict vegetarians (herbivores), but it is composed chieflyof animals that have varied diets (omnivores). The carnivorous primates are the four species of tarsiers, which live in Southeast Asia. Using their long back legs, thesepocket-sized nocturnal hunters leap on their prey, pinning it down with their hands and then killing it with their needle-sharp teeth. Tarsiers primarily eat in...
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Coral Reef.
sensitive to particles of mud or sediment settling on them, which means that corals rarely grow close to rivers or other sources of sediment. In the sea, light is filteredout by depth, so reef-building corals can only grow in relatively shallow water. Even in the clearest oceans few reef-building corals grow below a depth of 80 to 100 m(260 to 328 ft). Although corals need nutrients, they cannot thrive in areas where there are large amounts of nutrients. Typically, microscopic organisms in the p...
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Amphibian (animal) - biology.
strong enough to kill potential predators. C Hearing, Vision, and Vocalizations Amphibians rely on their senses to find food and evade predators. Amphibians lack external ears but have well-developed internal ears. Hearing is most acute in frogs,which typically have a middle ear cavity for transferring sound vibrations from the eardrum, or tympanum, to the inner ear. Frogs and toads also use their keen hearingin communicating with one another. Using a true voice box, or larynx, and a large, exp...
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Shark - biology.
Sharks have two-chambered hearts that are relatively small compared to the rest of their bodies. Blood flows from the heart to the gills, where it collects oxygen fromwater and then distributes it to the other organs and tissues. The small heart produces weak blood pressure, and many sharks must swim continuously to create themuscular contractions needed to circulate blood throughout their bodies. Most sharks are cold-blooded—that is, they do not generate heat by digesting food. Instead, the bod...
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allemande, littérature.
Cette mutation correspond à l’épanouissement d’un idéal, celui de la chevalerie. Le récit courtois atteint son apogée avec les œuvres de Hartmann von Aue, le premier des grands classiques du genre, qui introduit dans son pays les romans de la Table ronde et du roi Arthur ( voir cycle arthurien), ainsi que dans les œuvres de Gottfried de Strasbourg, de Wolfram von Eschenbach et de Heinrich von Veldeke. Bien que les ouvrages d’écrivains français comme Chrétien de Troyes, entre autres, aient serv...
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Aboriginal Australians - History.
Until Europeans began to settle in Australia in 1788, the Aboriginal way of life was supported by hunting, gathering, and fishing. Like other hunting and gatheringpeoples, Aboriginal people had an extremely detailed knowledge of their environment, especially plant ecology and animal behavior. The deep connection betweenAboriginal people and the natural world influenced every part of their culture, including their food gathering, tools, trade, religion, art, music, language, and socialorganizatio...
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Butterflies and Moths - biology.
The smallest butterflies are certain blues that have wingspans of a mere 0.7 cm (0.25 in). The largest are the female giant birdwings of Papua New Guinea, whichmeasure up to 30 cm (12 in) across. Moths range in size from tiny Microlepidoptera, several groups of small moths with wings no more than 0.16 cm (0.06 in) across, togiant silk moths, such as the atlas moth, which may exceed 30 cm (12 in) in wingspan. IV REPRODUCTION AND LIFE CYCLE Butterflies locate potential mates by sight, identifyin...
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Insect - biology.
they almost always have six legs. In some insects, such as beetles, the legs are practically identical, but in other insects each pair is a slightly different shape. Still otherinsects have specialized leg structures. Examples are praying mantises, which have grasping and stabbing forelegs armed with lethal spines, and grasshoppers andfleas, which have large, muscular hind legs that catapult them into the air. Mole crickets’ front legs are modified for digging, and backswimmers have hind legs de...
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Cambodia - country.
The population of Cambodia is 14,241,640 (2008 estimate). Population growth per year is estimated at 1.8 percent, one of the highest rates in Asia. The rate of infantmortality is also high. The population density is 81 persons per sq km (209 per sq mi), with the densest concentrations on the heavily cultivated central plain. Themountainous regions of the country, where malaria is widespread, are thinly populated, as are the poorly watered northern provinces. During the late 1970s, under thebruta...
- Baumann Dieter
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Pologne (1989-1990):
Liberté acquise, démocratie incertaine
Entre l'élection semi-démocratique à la Diète et au Sénat de juin 1989 et les...
Pologne (1989-1990): Liberté acquise, démocratie incertaine Entre l'élection semi-démocratique à la Diète et au Sénat de juin 1989 et les élections territoriales, entièrement démocratiques, de mai 1990 qui ont confirmé la prédominance de Solidarité sur l'échiquier politique, le rythme de l'avancée démocratique polonaise, comparé à celui de pays voisins (Hongrie, RDA...) est devenu le principal sujet des débats politiques dans le pays. Cela n'a pas manqué d'avoir un effet déstabilisateur sur le...
- Dictionnaire en ligne: DIÈTE1, substantif féminin.
- Dictionnaire en ligne: DIÈTE2, substantif féminin.
- Pouvoirs parlementaires - allemagne italie
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L'histoire de l'Allemagne
DE LA PRUSSE À L'EMPIRE LA llVAUTt AunllCHE-PIUSSE • la Prusse envisage de créer une Petite Allemagne (sans l'Autriche) fondée sur l'économie. Elle crée un marché unique allemand, le Zollverein (1834), auquel adhèrent une vingtaine d'États allemands du Nord. • !'.Autriche s'oppose alors à la Prusse en privilégiant les alliances avec les royaumes du Sud (Bavière et Wurtemberg). réunie à Frandort, siège de la diète, organise l'élection d'une Assemblé...
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Cetáceos - ciencias de la naturaleza.
OrcaLa orca es un gran depredador marino y entre sus presas están: peces, focas, leones marinos y ballenas. Las orcas tienen unaestructura social bien definida que gira en torno a la hembra dominante. Al igual que otros cetáceos con dientes (Odontocetos), lacomunicación entre los individuos está basada en la diversidad de sonidos que emiten estos animales. El silbido que se oye aquípertenece al calderón.Tom McHugh/Photo Researchers, Inc./Library of Natural Sounds, Cornell Laboratory of Ornitholo...
- Pologne
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Lagarto - ciencias de la naturaleza.
Lagarto de collarEste miembro de la familia de la iguana se caracteriza por los dos anillos negros que lleva en el cuello y por el hábito de correr a granvelocidad sobre las patas traseras. Aunque no es carnívoro, muerde cuando se le molesta.Larry Minden/Minden Pictures Su dieta varía de unas especies a otras. Muchas son insectívoras y otras, como la iguana común, son herbívoras. El monstruo de Gila, que vive en áreas desérticas, sealimenta de huevos de reptiles y aves, así como de pequeños roed...
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Motorradsport: Weltmeister.
1993 Dirk Raudies (Deutschland) Honda 1994 Kazuto Sakata (Japan) Aprilia 1995 Haruchika Aoki (Japan) Honda 1996 Haruchika Aoki (Japan) Honda 1997 Valentino Rossi (Italien) Aprilia 1998 Kazuto Sakata (Japan) Aprilia 1999 Emilio Alzamora (Spanien) Honda 2000 Roberto Locatelli (Italien) Aprilia 2001 Manuel Poggiali (San Marino) Gilera 2002 Daniel Pedrosa (Spanien) Honda 2003 Daniel Pedrosa (Spanien) Honda 2004 Andrea Dovizioso (Italien) Honda 2005 Thomas Lüthi (Schweiz) Honda 2006 Alvaro Bautista (...
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Tokyo.
entreprises et des plus grandes banques. Plus à l’est encore, entre les anciennes villes haute et basse, là même où s’étaient autrefois installés les grossistes venus d’Osaka,se trouve Ginza, le quartier des grands magasins, dont les rues, piétonnes le dimanche, sont bordées de nombreux grands magasins, de boutiques, de restaurants, decinémas et de théâtres. Au-delà de Ginza, vers le nord et l’est ainsi que le long du fleuve, s’étend l’ancienne ville basse, abritant notamment le quartier populai...
- Japon
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Murciélago - ciencias de la naturaleza.
incluso el tipo de objetos que hay a su alrededor. El murciélago, de esta manera, puede volar en total oscuridad, y podría afirmarse que es capaz de ver acústicamente. Lasseñales emitidas tienen una frecuencia y una modulación características en cada especie. Los pulsos de sonido son generados en la laringe del animal y, según la especie,son emitidos por la boca o por los orificios nasales. Ecolocación y detección de presasLos murciélagos utilizan estímulos auditivos para volar, localizar y capt...
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Japan - country.
island’s fertile soils support agriculture and provide the vast majority of Japan’s pasturelands. In addition, Hokkaidō contains coal deposits, and the cold currents off itsshores supply cold-water fish. Winters are long and harsh, so most of Hokkaid ō is lightly settled, housing about 5 percent of Japan’s population on approximately 20 percent of its land area. However,its snowy winters and unspoiled natural beauty attract many skiers and tourists. Hokkaid ō is thought of as Japan’s northern fr...
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Stroke.
IV DIAGNOSIS The symptoms typical of a stroke can also be caused by other conditions, including brain tumors, various infections, and overdoses of certain drugs. A patient that hasstrokelike symptoms may undergo a battery of imaging techniques to rule out other medical problems and confirm that a stroke has occurred. The key imagingtechnique used in diagnosing strokes is computed tomography (also known as CT or CAT scanning), which employs X rays to obtain images of the internal structures oft...
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Snake (reptile).
in their heads that conduct sound. They are able to hear low-frequency sounds and to sense vibrations that travel through the ground or water. The majority of snakeshave good eyesight, especially for detecting moving objects, although most burrowing snakes can only distinguish between light and dark. Pit vipers, boas, and pythons have an unusual adaptation for detecting warm-blooded prey and predators. On the heads of these snakes are small pits lined with cellsthat are extremely sensitive to he...
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Tokyo - geography.
The port of Tokyo has expanded tremendously in recent years and is now the second largest in Japan (after Yokohama) in value of trade. In 1993 it accounted forapproximately 14 percent of all trade by Japan’s ports. Reasons for the port’s growth include the deepening of sea lanes in Tokyo Bay, large reclamation projects tocreate room for new facilities and container terminals, and improvements to storage and distribution facilities. The largest categories of exports from the port of Tokyoare mach...
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Allemagne
sur scène pour modifier la pensée des gens. Par exemple l'espèce de morale dans Le Tartuffe de Molière est que lesfaux dévots finissent toujours mal et la justice gagne toujours. Donc en quelque sorte le théâtre doit êtrereprésenté pour refléter les défauts de la société.Enfin, la représentation est aussi favorisé par le fait d'être spectateur et pouvoir aller au théâtre sentir les émotionsdevant soi, contrairement a lire tout seul. De même au théâtre il ne faut pas lire de didascalies pui...
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Evolución humana - ciencias de la naturaleza.
Los cambios genéticos pueden mejorar la capacidad de los organismos para sobrevivir, reproducirse y, en animales, criar a su descendencia. Este proceso se denominaadaptación. Los progenitores transmiten mutaciones genéticas adaptativas a su descendencia y finalmente estos cambios se generalizan en una población —un grupo de organismos de la misma especie que comparten un hábitat local particular. Existen numerosos factores que pueden favorecer nuevas adaptaciones, pero los cambios delentorno d...