unfavourable environmental conditions

См. также в других словарях:

• dormancy — /dawr meuhn see/, n. the state of being dormant. [1780 90; DORM(ANT) + ANCY] * * * ▪ biology Introduction       state of reduced metabolic activity adopted by many organisms under conditions of environmental stress or, often, as in winter, when… …   Universalium

• Diapause — is the delay in development in response to regularly and recurring periods of adverse environmental conditions.[1][2] It is considered to be a physiological state of dormancy with very specific initiating and inhibiting conditions. Diapause is a… …   Wikipedia

• sponge — spongeless, adj. spongelike, adj. spongingly, adv. /spunj/, n., v., sponged, sponging. n. 1. any aquatic, chiefly marine animal of the phylum Porifera, having a porous structure and usually a horny, siliceous or calcareous internal skeleton or… …   Universalium

• Diatom — For a molecule of two atoms, see Diatomic molecule. Diatoms Marine diatoms Scientific classification Domain …   Wikipedia

• Ahrensburg culture — The Ahrensburg culture (11th to 10th millennia BC) was a late Upper Paleolithic culture during the Younger Dryas, the last spell of cold at the end of the Weichsel glaciation. The culture is named after village of Ahrensburg, 25 km northeast of… …   Wikipedia

• bacillus — /beuh sil euhs/, n., pl. bacilli / sil uy/. 1. any rod shaped or cylindrical bacterium of the genus Bacillus, comprising spore producing bacteria. See diag. under bacteria. 2. (formerly) any bacterium. [1880 85; < LL, var. of L bacillum (dim. of… …   Universalium

• locust — locustlike, adj. /loh keuhst/, n. 1. Also called acridid, short horned grasshopper. any of several grasshoppers of the family Acrididae, having short antennae and commonly migrating in swarms that strip the vegetation from large areas. 2. any of… …   Universalium

• animal development — Introduction  the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by …   Universalium

• branchiopod — /brang kee euh pod /, n. 1. any crustacean of the class (or subclass) Branchiopoda, having flattened, footlike appendages that bear respiratory organs. adj. 2. Also, branchiopodous /brang kee op euh deuhs/. belonging or pertaining to the… …   Universalium

• René Spitz — René Árpád Spitz (1887 ndash; November 11, 1974) was an American psychoanalyst of Hungarian origin. Biography Rene Spitz was born in Vienna. Fleeing Nazi Germany, he settled in the United States and worked at the University of Denver. He based… …   Wikipedia

• wool — woollike, adj. /wool/, n. 1. the fine, soft, curly hair that forms the fleece of sheep and certain other animals, characterized by minute, overlapping surface scales that give it its felting property. 2. fabrics and garments of such wool. 3. yarn …   Universalium