Kiel - ichi ... N'chifukwa chiyani tiyenera mbalame

Nyama ndi mbalame - ndi chimake cha zamoyo wa inakhala. Ndipo iwo onse anaonekera pa nthawi yomweyo. Ngakhale mu nthawi Triassic anali nyama oyambirira, omwe wosiyana zinyamazi. Iwo anali wosazindikira ndi konse amatikumbutsa nyama ano. Pa chiyambi cha nthawi Jurassic ku abuluzi lapadziko anabwera mbalame zouluka, amene limene lachititsa gulu la mbalame.

Zokwawa si kumene kuli dera lonse, amene analola kukhazikika mbalame woyamba ndi nyama m'magawo mfulu. Popeza kuti iwo atagonjetsa madera atsopano, amene kale ntchito abuluzi anapereka chakuti nyama ndi mbalame anaonekera zimasintha kupulumuka zosiyanasiyana zinthu. Abuluzi - izi ndi mpikisano waukulu, chifukwa iwo mbalame bwino mantha dongosolo, ziwalo tanthauzo ndi khalidwe. Lero ndife chidwi kapangidwe ka nkhani. Tikupereka timudziwe bwino mbali imeneyi ya thupi monga muyezo wa. chipangizo chimenechi mbalame ndi nyama zina. Chimene icho chiri, chimene ntchito zimagwiridwa, tikuphunzira ntchito imeneyi.

Kapangidwe ka mbalame

mbalame zambiri kuwuluka, ena m'kupita kwa zinthu, ataya luso limeneli. Tsopano tiyeni tikambirane pang'ono za kapangidwe ka mapapo ndi zolengedwa mpweya. mafupa Tubular, zimalimbikitsa laimu mchere, kulola mbalame kuuluka, chifukwa mafupa awo amasandulika a mphamvu ndi kuwala. Chigaza komanso zimaonetsa mbalame: mbali yakutsogolo chokha chachikulu mwake diso ndi mulomo, amene kale anali nsagwada ndi mano.

Khosi osiyana m'litali ndi zoyendayenda, tichipeza khumi ndi twente-faifi vertebrae. Ngati miyendo kutsogolo - ndi mapiko, chinawonjezeka katundu pa miyendo: mafupa kuti mbali m'chiuno zinaphatikizidwa, kotero iwo akhala amphamvu kwambiri. Pali mbali mu kapangidwe ka dipatimenti phewa Mwachitsanzo - pa muyezo. Ichi ndi fupa amphamvu kwambiri, omwe akutumikira phiri kwa minofu pectoral. Tiyeni tikambirane nkhani imeneyi mowonjezera.

Kiel

Monga tanena kale, ndi muyezo - outgrowth ichi, chimene chili chofunika kukonza mbalame minofu pectoral. outgrowth Izi unakhazikitsidwa mu ndondomeko ya kusanduka, monga mbalame kuwuluka zikomo kwa chipangizo ichi, chifukwa minofu pectoral apanga mwamphamvu kwambiri. Iye si mbalame kokha, komanso nyama zina, amene ali wamphamvu miyendo kutsogolo: monga ulamuliro, akumba pansi. Chitsanzo adzakhala Mole. Koma makamaka chitukuko cha muyezo wa adakali pa mbalame, mileme. Pali ngakhale otchedwa muyezo mbalame: hummingbirds, swifts ndi zina zotero. Ndiko kuti, tinganene kuti muyezo - chida cha mbalame ndi burrowing nyama, popanda zomwe iwo Sangathe kuchita.

ntchito

Kiel - ichi makamaka mbalame, Bony outgrowth mu msana thoracic, ndi mosabisa, ntchito kulumikiza ndi minofu mwachilungamo amphamvu nawo ndi kuyenda. Unikani cholinga chachikulu ndi ntchito ya lokwera fupa.

• Kiel tiyeneranso kulimbitsa msana thoracic, mwachitsanzo mafupa a chigawo ichi ndi cholimba kwambiri. Tikhoza kunena kuti ndi chida zina kuteteza ziwalo zofunika kwambiri.
• Popeza mbalame pamene kusuntha mapiko nawo kwambiri ndithu minofu, ndi muyezo yakwera kuti ambiri ngati ulusi minofu.
• Komanso, outgrowth izi amalimbikitsa sayenda wa thoracic ndi. Zimenezi zimathandiza kuti magulu ndi kupuma kwambiri.
• Yotsirizira ntchito - ndi kusintha mu ndege njira, ndi muyezo si malo otsiriza mu ndondomeko imeneyi.

Mu mbalame zina palibe muyezo

Choncho muyezo - ndichiyani? Funso ili. Zanenedwa kuti pali outgrowth mbalame, koma salankhulanso za kuchotserapo. Nkofunika kufotokozera kuti pali subclass wa ratites. Poyamba iwo anali kutchedwa motere:

• Kumwazamwaza.
• Nthiwatiwa.
• Gladkogrudye.

subclass Izi zikuphatikizapo ochuluka monga 8 mayunitsi:

• Casuariiformes.
• Kiviobraznye.
• Nanduobraznye.
• Ratite.
• Tinamuobraznye.
• Epiornisoobraznye.
• Litornitoobraznye.
• Moaobraznye.

Za magulu atatu otsiriza, anthu ambiri sizikanakhoza mukumva, monga owayimilira akhala zinatha.