Umxholo
- Iimpawu kunye nokuziphatha
- Izinto eziluncedo nezingalunganga
- Useto lwePoikilotherm
- Ngaphandle
- Imizekelo yezilwanyana ezinetyhefu
Inkqubo ye- izilwanyana ezinobundlobongela (kutshanje kuthiwa ‘zii-ectotherms’) zezo zilawula ubushushu bazo kumaqondo obushushu afudumeleyo.
Oku kwenzeka ngenxa yokuba zingenalo uphawu lwezinye izinto eziphilayo, ezinokuthi zikwazi ukulawula ubushushu bomzimba wazo ngokuvelisa ubushushu: yiyo loo nto ezi ntlobo zezilwanyana zihlala zibizwa ngokuba zizilwanyana "ezinegazi elibandayo". Izilwanyana ezingezizo ii-poikilotherms 'zii-homeotherms' (okanye 'i-endotherms'), eziphakathi kwazo zonke izilwanyana ezincancisayo.
Iimpawu kunye nokuziphatha
Ngokubanzi, ezona poikilotherms zincinci zihlengahlengisa kubushushu begumbi, kodwa kukho ezinye zazo ezinokuthi zinciphise amaqondo obushushu agqithisileyo ngokusekwe kukuziphatha okufudumeleyo, kwaye kulapho ke bahlengahlengisa impembelelo yexesha elifutshane yokwahluka kobushushu.
Kutshanje ezinye izazinzulu zifumanise ukuba ukunyuka kwemihla ngemihla kwiqondo lobushushu elixhaphakileyo kuguqula ubuntununtunu bezinto eziphilayo kufudumalo olubangelwa kukutshintsha kwemozulu, ngokunciphisa imida yokhuseleko lobushushu.
Izinto eziluncedo nezingalunganga
Ngelixa izilwanyana ezingapheliyo zibangela ubushushu kumandla aqulethwe kukutya, ii-ectotherms akufuneki zondle yonke imihla kwaye banokuhamba iinyanga ngaphandle kokondla.
Oku kubanika ithuba, elicinywa yinto yokuba abanakho ukuhlala kwindawo ezinamaqondo obushushu aphezulu, kuba zixhomekeke kakhulu kutshintsho lwendalo: i-endotherms, kwelinye icala, inokuhlala kwindawo ebandayo okanye eshushu.
Useto lwePoikilotherm
Njengakwi-ectotherms ukumiselwa kobushushu kuxhomekeke kwisakhono sokulawula ukutshintshiselana ngobushushu kunye nokusingqongileyo, kuyinto eqhelekileyo ukuba ezinye maziveliselwe ukunyanga ubushushu. Ezi zahlulwe zangamaqela amabini:
- Inkqubo ye- uhlengahlengiso kwindlela yokuziphatha Olu lutshintsho ekuziphatheni okukhangela iindawo okusingqongileyo apho ubushushu bulungile kwimisebenzi. Kukho iintlobo ezithile ezibizwa ngokuba yi-euthermic, ezinokuhlala kumanqanaba abanzi obushushu bomzimba.
- Inkqubo ye- uhlengahlengiso lomzimba Zizo ezo ziguqula izingqisho zemetabolism kubushushu obukhoyo, ngendlela yokuba ubungakanani bemetabolism abuguqulwanga. Olu hlobo lwesilwanyana lwenza imbuyekezo yeqondo lobushushu ebavumela ukuba babe nenqanaba elifanayo lomsebenzi kwiindawo ezinemozulu ezahlukeneyo: ziyafana ne-endotherms, ezilawula ngokuthe ngqo imetabolism yazo ngaphandle kobushushu bomzimba.
Ngaphandle
Kukho iimeko ezithile zezilwanyana ezingenayo i-ectothermic, kodwa ezineendlela ezifanayo zokuziphatha.
- Inkqubo ye- Ukuphela kwengingqiUmzekelo, kwenzeka xa ubushushu bentliziyo kunye neegill zitshintsha notshintsho kubushushu bendalo, njengoko kusenzeka kwamanye amaqela eentlanzi.
- Inkqubo ye- amandla endothermyKwelinye icala, kwenzeka rhoqo kwizinambuzane ezinokuvelisa ubushushu ngokungcangcazela kwemisipha yazo, zinyuse ubushushu bomzimba wazo ixesha elithile.
Imizekelo yezilwanyana ezinetyhefu
- Icordylus licilikishe
- IGuapagos yolwandle iguana
- Icilikishe lentlango
- Ngwenya
- Intethe
- Intlango iguana
- IiLobsters
- Amabhabhathane
- Iikhilikithi
- Iimbovane
