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Dumin jiki dabbobi - yana da ... Misalan dumin jiki dabbobi

Zai ze cewa zai iya zama da sauki fiye da su ayyana manufar, wanda muka sani daga makaranta benci. Bari mu yi kokarin.

Saboda haka, dumin jiki dabbobi - Waɗannan su ne wakilan da fauna da cewa suna da dumi jini. To, abin da? Yarda, ya juya wasu tautology cewa ba bayyana da kimiyya lokaci.

Dole mu shiga cikin da ilmin halitta.

Abin da dabbobi suna da dumin jiki? Mun bayar da kimiyya definition daga cikin manufar

A sauki da kuma m harshe, irin An kira dabbobi wadanda jikinsu nuna zafin kona abinci. Ba zato ba tsammani, wannan makamashi ne generated ma saboda jiki aiki da rawan jiki dabbobi.

Masana kimiyya sun gano cewa dumin jiki dabbobi - yana da kawai dabbobi masu shayarwa da tsuntsaye. Halittar dabba mai kafafuwa da dabbobi masu rarrafe saboda wasu physiological halaye dangana musu ne ba zai yiwu ba.

Ya kamata a lura cewa, duk da canji na yanayi, da farko na m sanyi da kuma m zafi, da yanayin jiki na wannan category ya taba canza. Me ya sa wannan magana?

The gaskiyar cewa mafi yawan duk dumin jiki da ake kira ruwan kasa mai, wanda located karkashin fata a cikin wuyansa, baya da kuma kirji. Its Layer da Jawo, ulu da gashinsa taimaka goyon baya da kuma riƙe zafi.

A farko dumin jiki a duniya

Saboda haka, mun gano cewa, dumin jiki dabbobi - yana da tsuntsaye da dabbobi masu shayarwa. Amma abin da suka kakanninsu?

Masana sun yi imani da cewa na farko nau'in fito a cikin Cenozoic zamanin. A lokacin, fauna fara ci ba kawai kwari, amma kuma gwada ganyayyaki na abinci.

A kan lokaci, da dabbobi da ci kwari na ci gaba da matsawa a hankali don wani ya fi girma ci abinci. Wannan shi ne dalilin da ya sa zuriyarsu ana haife kowane lokaci kuma da sanya sõyayya zuwa wannan hanyar cin abinci. Alal misali, suna da fika kuma fangs suka fara samar. Modern malamai jayayya da cewa daga wadannan halittu daga baya ya zo beyar, Wolves, damisa da zakoki.

Wadanda dabbobi masu shayarwa cewa ne mafi kusantar su ci ciyayi, samu a lokacin da ci gaban da] orewar ci m hooves ga tafiya da karfi hakora, su sa shi sauki tauna shuke-shuke. Daga wadannan dabbobi ya faru daga baya rhinoceroses, giwaye, da dawakai, da shanu. Ko da yake akwai wasu dumin jiki, wanda ya gaba daya ya canza rage cin abinci. Sun riga sun saba ci ne kawai 'ya'yan itatuwa da suka fara zama a cikin bishiyoyi. Ta haka ne aka magabatan farko jinsunan birai.

Hanyoyin da sanyaya wasu dabbobi

Ko da a cikin temperate latitudes a sau zo bushe sosai kwana a lõkacin da zafi ba da damar don matsawa da yardar kaina a kusa da birnin har mu mutane. Amma mun yarda da cewa shi ne iya boye daga mummunan yanayi a ɗaka da kwandishan ko kawai inda ganuwar ne don haka m cewa da rana ne ba iya zafi da ginin ta hanyar. Amma abin da ajiye dabbobi a irin haka ne?

Game da mu karami 'yan'uwa ya kula da kansa Mother Nature. Alal misali, kowane daga cikin mu lura da cewa kare idan shi ne zafi, harshensa daga bakinsa. Me ya sa? Gaskiyar ita ce, a wannan hanyar ruwa evaporates da kuma rage jiki zafin jiki. Amma tsuntsaye da musamman miciwa, na huhu sanye take bags. Dalilin da wani hadadden tsarin - ba kawai gas musayar kuma numfasawa, amma kuma ya saki zafi daga ciki gabobin a cikin shakka daga hurawa.

A general, ya kamata a lura da cewa idan wani kwayoyin a kan duniya da kuma har yanzu za a iya mamaki da ta karbuwa ga muhalli, shi ne dumin jiki dabbobi. Misalai za a iya kawo rashin iyaka.

Tsuntsu, wanda ba freezes

Kila, wannan mazauni na cikin matsananci kudancin latitudes ya ji kowane daya daga cikin mu. Har yara ma son majigin yara game da funny kuma fitinarsu penguins.

Kamar yadda ka sani, mafi yawan wadannan tsuntsaye rayuwa a Antarctica, a wani wajen sanyi yanayi.

Da yake duka biyu a kan ƙasa, kuma a cikin ruwa, ba shakka, da sanyi, da tsuntsayen bai ji daɗi. Ta yaya suka yi? The abu ne, suna da wata Layer na kitse, wanda aka rufe da gashinsa. Ya taimaka wajen riƙe zafi, kuma yana da musamman ruwa-m dukiya.

Bugu da kari, sun taimaka ga riƙe zafi sosai a hankali spaced m gashinsa. Su ne a kusa lamba tare da juna, da cewa babu iska bai bar tsuntsaye daskare.

Amma abin da game da kafafu, domin su suna ba an rufe shi da gashinsa? Amma a nan matsalar da aka warware: da penguin ƙafafunsa su ne kadan jini da kuma jijiyoyi, sabõda haka sũ, ba su yi barazanar frostbite.

watau a mayar da martani ga wani tsari domin kawo karshen kalmar "dumin jiki dabbobi - shi ne ..." da za a iya bayyana a matsayin ba kawai mu saba Cats, karnuka, da dawakai da sauran dabbobi sukan samu a garuruwa da kauyuka, amma kuma da penguins - mazaunan coldest wurare a duniya.

Me bear barci a cikin hunturu?

Hakika, tare da colds da sanyi za a iya yi yaƙi quite daban. Wani a cikin tsarin juyin halitta ya samu a dumi Jawo ko gashinsa, da kariminci greased kuma, akwai waɗanda suka zaɓi wani fairly sauki hanya don tsira da sanyi. Mene ne wannan? Hibernate! Kila har yara za su iya lissafa abin da dabbobi (dumin jiki) lumana mafarki yayin da a waje su tsara yin kankara snowstorm mamaye, da kuma ma'aunin zafi da sanyio da wuya lẽƙãwa a sifili digiri. To, ba shakka, hedgehogs, chipmunks, badgers, beyar, da yawa wasu. Amma a yau za mu mayar da hankali a kan kawai m.

Bears yawanci ci shuka abinci, da kuma a cikin hunturu da shi ne shakka ba sami. Saboda da tara ga dumi kitse, wadannan dabbobi suna boye a cikin ramukan da kuma ciyar da hunturu akwai, cin su reserves. Saboda haka babu bukatar in je waje.

A lokacin hunturu, bears ba su kai masu zama a gida rayukansu, su aiki an rage wa sifili. A yanayin jikinsu zuwa yanayi zazzabi, numfashi slows saukar, da zuciya beats ba kamar yadda aiki. Wadannan matakai sa ya yiwu ba su vata makamashi, da suka sa shi yiwuwa a amince tsira da beyar ta hunturu. Hannun jari yawanci yana har farko spring kwana.

A banda ga mulkin

Kamar yadda muka gani a sama, duk dabbobi, da tsuntsaye, - dumin jiki dabbobi. Amma akwai wani karamin dabba da cewa a zahiri ba har wannan hanya ta rayuwa, kuma ya kasance wani banda kisan gillar. Sunan wannan dabba ne tsirara navvy. Yana da gaske ban mamaki da kuma na musamman, domin hadawa da physiological halaye na m.

Rubuce mole bera za a iya kwatanta su da wani bera ko hamster, amma za ka iya count ba fiye da dari hairs a jikinsa, don haka shi ne ake kira tsirara. A digger, a fili, domin ya gina gidaje da kuma raye a boye.

Af, a karkashin kasa ne fairly babban taro na carbon dioxide da kuma babba adadin ruwa. Duk wannan a hade ne tuba zuwa cikin carbonic acid, daga wanda wani dabba zasu fuskanci wani m abin mamaki.

Amma a nan digger haskakawa domin ta musamman da suka bambanta. Sabili saboda rashin wannan karamin dabba Jawo ne sosai m, amma da fata ba amsa kiran acid konewa, da kuma duk saboda digger kawai samu kawar da m jijiya endings.

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