iicetaceans:
- iminenga,
- iiDolphins,
- iiporpoise,
- isperm whale,
- iminenga ebulalayo,
- i-beluga,
- i-narwhal;
Bazalwa njani ookrebe? THE ukrebe-umnenga i-oviparous, njengeentaka. Izalela amaqanda athi emva koko akhutshelwe elwandle, Iqanda ngalinye kula lincamathele ematyeni anemicu. Ngaphakathi, i-embryo ikhula kangangeenyanga ezi-6 ukuya kwezili-10 ...
Ngaba ijellyfish sisilwanyana esanyisayo?
La Medusa kunjalo isilwanyana saselwandle esingenamqolo esinemilo yentsimbi okanye, ukuba uyathanda, iambrela. Kukho iintlobo ezininzi ze ijellyfish. Uhlala kuzo zonke iilwandle kunye neelwandle. Akanayo ingqondo, imiphunga, igazi okanye amathambo.
Ngaba idolphin sisilwanyana esanyisayo?
Njengabo bonke ezanyisayo, le idolphin yiyo ihomeotherm, edla ngokubizwa ngokuba sisilwanyana esinegazi elishushu. Ugcina umzimba wakhe kwiqondo lobushushu obufanayo nokuba bubuphi na ubushushu obukuleyo. Nokuba yi-28 ° C okanye i-15 ° C emanzini, iyigcina izinzile.
Sesiphi isilwanyana saselwandle esanyisayo?
iminenga ye-baleen okanye i-mysticete, equka iminenga engapheliyo, iminenga elungileyo, iminenga engwevu kunye neminenga yepygmy; iminenga enamazinyo okanye ii<em>odontocetes, eziquka iminenga yamasperm, amahlengesi (kuquka iminenga ebulalayo kunye neminenga eyipilot), ii<em>porpoise, iminenga enemilomo, i<em>beluga ne<em>narwhal.
Ingaba ookrebe babeka amaqanda?
Emva kokukhwelana, imazi inako lala ezininzi zeamaqanda ukuba bajije ngababini kwi-algae okanye ematyeni. Isikrweqe sokwenene sokukhusela, i-capsule evale i-embryo Est yenziwe yikeratin, iprotein kunye neyona nto iphambili yezikhonkwane ebantwini.
Ngaba amahlengesi abeka amaqanda?
Ihlengesi lilo a viviparous, yonaEstoko kuthetha ukuba ithwala intshontsho layo esibelekweni sayo ize iyondle ngenkaba emva koko ngamabele ekuzalweni kwayo. ...Inokuba yi-oviparous (ubeka amaqanda), ovoviviparous (iqanda iqanduselwe kwisisu semazi) okanye i-viviparous.
Ngowuphi owona krebe uyingozi ehlabathini?
Phakathi kwabo banoxanduva lokulunywa emadodeni, sifumana kunye ngokuqhelekileyo: enkulu ukrebe Mhlophe ; i ukrebe-ingwe; i ukrebe-i-bulldog.
Ngaba ijelifish yintlanzi?
Ayiyiyo irhamncwa elinamathambo, okanye icrustacean eneqokobhe, okanye imollusk eneqokobhe, ijellyfish yiyo yenziwe nje ngedermis ehlanganiswe nezihlunu ezijikelezayo ezijikelezayo kwinqanaba le-ambrela kunye nezihlunu ze-radial kwinqanaba leentente.
Mingaphi iminyaka ijellyfish?
Ubomi be ijellyfish Ihlala ngokubanzi ukusuka kwiintsuku ezimbalwa ukuya kwiinyanga ezimbini kwiintlobo ezincinci, unyaka omnye ukuya kwemibini kwizikhulu.
Ngaba ijellyfish ibeka amaqanda?
Ukuchumisa kwe ijellyfish : iqanda, i-polyp kunye neplanula
Kukho iikholoni zamadoda kunye namakoloni amabhinqa. … Ziyakhupha amaqanda kunye ne-spermatozoa elwandle kwaye, emva kokuchumisa, iiqanda iguquka ibe yiplanula ethi yona incamathele kwaye yenze i-polyp.
Kutheni idolphin ingeyontlanzi?
Ngokuchasene ne- fish, le dolphin kufuneka inyuke rhoqo phezu kwamanzi. Siyimfuneko ebalulekileyo kuye ekubeni ukuphefumla kwakhe kuxhomekeke kuyo. Njengazo zonke izilwanyana ezanyisayo, iphefumla ngemiphunga. Ivuselela ioksijini yayo phezulu nge-vent yayo, umngxuma omncinci obekwe phezulu kwentloko yabo.
Ngaba i-narwhal sisilwanyana esanyisayo?
Le narwhal (iMonodon monoceros, intsingiselo yophondo okanye izinyo elinye) Est i-cetacean yosapho lweMonodontidae. Oku isilwanyana esanyisayo namakhadi Est ebizwa ngokuba yi-unicorn yolwandle ngenxa yokuba “inebamba” elide kakhulu. Ihlala kuLwandlekazi lweArctic, kude nonxweme lwaseGreenland, eNorway, eCanada nakwiRussia.
Ngaba umnenga sisilwanyana esanyisayo?
Njengentlanzi, imik bachitha ubomi babo phantsi kwamanzi. Nangona kunjalo, i imik are ezanyisayo hayi intlanzi.
Zeziphi izilwanyana ezizizilwanyana ezanyisayo?
Ii-odolo eziphezulu ezingama-20 ze ezanyisayo
- Ezingenamazinyo: iianteater, iiarmadillos, sloths ...
- Iimarsupials: iikhangaroo, iiwallabies, iiwombats ...
- IiOviparas: iiplatypus, ii-echidnas ...
- Izinambuzane: i-shrews, i-hedgehogs ...
- Iiprimates: iilemurs, iimarmosets, abantu ...
- Iipangolin: iipangolin.
- I-Orycteropus: i-orycteropus.
Sesiphi isilwanyana esanyisayo?
Les imfuyo yeklasi ye Izilwanyana ezanyisayo zahlulahlulwe zaba ngamacandelo amathathu: Izilwanyana ezanyisayo I-Placental okanye i-Eutherian (i-Primates, i-Carnivores, i-Rodents, i-Edentulous, i-Insectivores, i-Proboscidians, i-Cetaceans, njl.), Ii-Marsupials okanye i-Metatherian (i-Kangaroos, i-Wallabies, i-Koalas, njl.)
Ngaba iintaka zizilwanyana ezanyisayo?
Les kwiintaka bakwiklasi yeVertebrates, iqela lezilwanyana ezinomqolo. Ngokukodwa ngakumbi, i Oiseaux bakwiqela le-tetrapods, ii-vertebrates ezinemilenze emine, ekwabandakanya i-amphibians, ezanyisayo nazo zonke ezirhubuluzayo.
Sesiphi ekuphela kwesilwanyana esanyisayo esizalela amaqanda?
NgePlatypus, yinxalenye yomyalelo weMonotremes, kuphela izilwanyana ezanyisayo ezizalela amaqanda.
Yintoni ekhethekileyo ye-Ovoviviparous?
Les ovoviviparous
La into ekhethekileyo ye-ovoviviparous ukudibanisa ezi ndlela zi-2 zokuzala. a ovoviviparous uphuma kunina ephila. Kule bona zi viviparous. Nangona kunjalo, ukukhula kwabo kwenzeka kwiqanda, njenge i-oviparous, kodwa ngubani Est igcinwe esiswini semazi.
Uthini umahluko phakathi kwe-oviparous kunye ne-viviparous?
Oviparous : Kwiintlobo zezilwanyana ezahlukeneyo, imazi ibeka amaqanda. Viviparous : Ibhekisa kwiindidi ezinamantshontsho akhula ngaphakathi kwesisu semazi. Oku sont rhoqo izilwanyana ezanyisayo. Ngaphandle kwe-platypus: yona i-oviparous (ubeka amaqanda) kodwa uyancancisa.
Kutheni i dolphins zingezizo iintlanzi?
Ngokuchasene ne- fish, ihlengesi kufuneka inyuke rhoqo phezu kwamanzi. VS'Est imfuneko ebalulekileyo kuye ekubeni ukuphefumla kwakhe kuxhomekeke kuyo. Njengazo zonke izilwanyana ezanyisayo, iphefumla ngemiphunga. Ihlaziya ioksijini yayo kumphezulu ngenxa yokuphuma kwayo, umngxuma omncinci ophezu kwentloko yawo.
Ngaba amahlengesi ayingozi?
Kwingcinga edibeneyo, i idolphin yiyo isilwanyana esinothando, esihlakaniphileyo nesinesibindi, esinobuhlobo kakhulu emntwini. Enyanisweni, yonaEst yonke into. ... Ngethamsanqa, zonke amahlengethwa azikho nazo eziyingozi yaye inkoliso yabo iba nolwalamano loxolo nabamelwane bayo.
Ingaba idolphin iziphatha njani?
Ngokomyinge, i dolphin inobunzima be-75 kg kunye nemilinganiselo phakathi kwe-1,5 kunye ne-2,5 yeemitha. Inempumlo ende eyaziwa ngokuba ngumlomo okanye i-rostrum, iphiko kunye namaphiko amabini, kunye nomsila osicaba, owenziwe ngefolokhwe (i-caudal). Le yokugqibela ivumela ukuba ilinganise kwaye se Isikhokelo.