Fish and Frog: lokufanako nalokwehlukile

Okuningi ku izifundo biology inkulumo uthisha mayelana ezihlukahlukene zezilwane. Phakathi kwabo - the chordates kuqala futhi ezilwaneni ezinomgogodla ezinamehlo abakhileyo iplanethi yethu. Lezi zihlanganisa kwezinhlanzi nezilwane eziphila ezweni. On the lokufanako nalokwehlukile emkhatsini izinhlanzi kanye frog ufunde isihloko.

inhlanzi

Lezi ezilwaneni ezinomgogodla ezinamehlo endulo uhlalwe zonke izinhlobo imizimba amanzi. Evolution ophoqelelwe kubo ukushintsha, kuphumele izilwane zasemhlabeni kuqala ephuma. Fish ukuphila cishe kuyo yonke indawo. Bangabaholi ngobukhulu eyinhloko chordates superclass. isayensi Ubude uyazi ezingaphezu kuka eyizinkulungwane ezingamashumi amabili lezi zilwane.

Fish - nezilwane nongenanembeza. Ziyakwazi sixhomeke kakhulu izinga lokushisa kuma, ijubane izinqubo zabo umzimba iyahlukahluka kuye ngokuthi izimo lokushisa. Ebusika, lapho amanzi epholisa phansi zero degree ngezansi, izinhlanzi nje wehlele phansi echibini, ngoba kukhona njalo zero lokushisa.

Fish and Frog yizici ezibalulekile ngamaketanga eziningi ukudla. Abenzi kuphela adla nezinye yezitshalo nezilwane eziphilayo, kodwa bona ngokwabo babe ukudla ezidla ezinye. inhlanzi abaningi abadlala ukuze abantu. Ngenxa yokuthi inani elikhulu la izilwane zifa ngenxa fishings, izinhlobo ezithile zezinhlanzi ziye ohlwini ezisengozini noma kuye kwanyamalala ebusweni Zomhlaba.

amasele

Amphibians - izilwane wokuqala, setha unyawo umhlaba. Abakwazi ukuphila kokubili ezweni emanzini. Ngenkathi izinhlanzi eziphila emanzini usawoti kanye fresh, izilwane eziphila emanzini nasezweni kungatholakala kuphela emifuleni.

Fish and frog ube nenamba lokufanayo nomehluko. Amphibians ziye zathi nemilenze ezivumela izilwane zasemhlabeni ukuze sifinyelele eliphezulu. Isikhumba sabo nqunu, embozwe isikhwehlela. Banezinhliziyo umbono evuthiwe - kubasiza uqaphela inyamazane esekude bese ekubambeni ulimi lwayo olude okunamathelayo. Amaxoxo yizilwane nongenanembeza, ngakho yabo isiqongo umsebenzi Ngezikhathi zasehlobo. Ngokuvamile bathi ingatholakala amaxhaphozi, ese kanye amadamu ahlukahlukene.

ukufana

Echaza ukufana phakathi izinhlanzi kanye amaxoxo, asikwazi bathi zifana, hhayi ngaphandle kuphela kodwa futhi ngaphakathi. Lokhu kubonakala eqinisweni lokuthi tadpoles esanda achanyuselwa zifane ukuma kuphela nezinhlanzi ezincane. Lapho isikhulile yokufana kwawo kubangelwa yokuthi izinhloko lezi nezilwane ngokushelela ebhuthini. Ngo amaxoxo, kukhona omunye vertebra olulodwa wesibeletho intamo gill izinhlanzi ubuyisela ikhava labaqaphi elingemuva.

Ngaphezu kwalokho, izinhlanzi, futhi frog babe umqhewu temlomo na amehlo ezinkulu. Lena enye yezinhlobo ezingu ukufana ezisobala kakhulu isakhiwo zabo zangaphandle. Ngokuqondene sinuses acinene futhi emakhaleni ke izilwane zasemhlabeni, ukudoba kubo amabhangqa amabili. Nokho, ezimbili emakhaleni ezine amaxoxo emlonyeni wakhe, kuyilapho wonke emakhaleni izinhlanzi ezibekwe ekhanda.

Fish and Frog imisipha evuthiwe. Uma izilwane zasemhlabeni lihlotshaniswa umsebenzi ngokomzimba, izinhlanzi - kusukela ukubhukuda. Iqiniso lokuthi kubalulekile ukuhlala emanzini futhi sikwazi ukumelana busebenze. Athi imisipha ukuthi banesibopho ukuhamba amehlo, amaphiko kanye nezinye izingxenye ezithile zemizimba yabo.

Labo kanye nabanye abameleli Fauna eziyizimbangela. Ngesikhathi esifanayo izinhlanzi gazinga futhi tadpoles kukhona chordates. Bobabili abameleli nezilwane we nongenanembeza, okubenza babe sincike lokushisa ezibazungezile.

umehluko

Njengoba kushiwo ngaphambili, inhlanzi kanye frog ifa kokubili letifanako kanye netintfo letehlukile. Iza phambi zangaphakathi nezangaphandle.

Okokuqala, basuke linamathele isakhiwo skeleton. Ngo amaxoxo babe vertebra wesibeletho, ngenkathi ngingekho kwezinhlanzi nezilwane eziphila ezweni ogebhezini kuyinto amathambo amancane. Ixoxo ikhanda movably exhunywe kwi emzimbeni. intambo yakhe umgogodla ivikelwe lwesikhathi eziningana. Nakuba izinhlanzi babe gills, izilwane eziphila emanzini nasezweni akukho amathambo gill noma zamabhodlela zabo.

Imisipha skeleton futhi zehlukile nezilwane. Ngenxa yokuthi frog is hhayi nje sintanta emanzini, kodwa futhi udlulele umhlaba, imisipha yemilenze zalo athuthukiswe kahle. Ngaphezu kwalokho, kungaba ehlise futhi aphakamise ikhanda lakhe njengasekuqaleni. Amphibians ungashukumisela bacondze etindzaweni letehlukene, kuyilapho ukuhamba izinhlanzi okuyisidina kanye into lifana inyoka. Umehluko amaxoxo nenhlanzi itholakala isakhiwo emehlweni abo. Iqiniso lokuthi izinhlanzi zingabantu flat nezilwane eziphila ezweni - convex.

Ukuma komzimba nezilwane zihluke kakhulu. Okokuqala, umumo ovikelekile lomzimba zenhlanzi, okuyinto enomthelela ijubane layo eliphezulu ukunyakaza emanzini. amanzi abakhileyo Isikhumba ngokuvamile embozwe izikali, nezilwane eziphila ezweni isikhumba nqunu. Lona omunye umehluko abaningi phakathi kwezilwane eziphila ezweni nenhlanzi.