Inyoka enkulu echibini njengommeleli we-mollusks

Inyoka enkulu echibini ngummeleli ojwayelekile wamagciwane asemanzini ahlanzekile . Kulesi sihloko sizocabangela izimo zendawo yokuhlala kanye nezici ezijwayelekile zesakhiwo salesi silwane.

I-Molluscs: izici zenhlangano

NgeLatin, igama lolu hlobo lwesilwane lisho ukuthi "lunamathele". Abanye babo banezigobolondo. Kodwa kunoma yisiphi isimo, umzimba walezi zinyama ezingenayo ilula futhi ayihlanganisiwe. Ungazihlangabeza emanzini amasha nosawoti. Ngakho-ke, izilwane ezingenasibindi kanye ne-perlovtsy zihlala emachibini nasemachibi, kanye nama-mussels nama-octopus - ezilwandle. Izinkinobho kanye nama-slugs zingatholakala emhlabeni omanzi.

Emzimbeni we-mollusks, ungahlukanisa izingxenye ezintathu: ikhanda, isiqu nomlenze. Eziningi zazo zihamba kancane kancane, ngoba imisipha imelelwe izigxobo ezihlukene. Kuwo wonke ama-mollusk, umzimba ungozwe ngesikhumba sesikhumba esibizwa ngokuthi i-mantle.

Ukusekelwa okuyisisekelo

Kuye ngezici zesakhiwo, amaqembu amathathu e-mollusks ahlukile. Isibonakaliso sesimpawu se-cephalopods ukuguqulwa kwezinyawo ezintweni. Zitholakala emlonyeni. Emathangeni kukhona ama-suckers, ngosizo lwezilwane ezibamba futhi zibamba inyamazane. Ama-cephalopod angakwazi ukunyakaza ngokusebenza ngenxa yokwakheka okukhethekile kwe-tubular - umbhobho. Abamele laleli klasi yi-squid, i-cuttlefish ne-octopus.

Ama-molluscs aphikisanayo ama- perlovets, ama-dreissena, ama-mussels nama-oysters. Bonke banomzimba oqukethe isiqu nomlenze, kanye negobolondo lamapheshana amabili. Inyoka enkulu echibini imelela ama-gastropods. Masihlale sibheke ngesakhiwo salo ngokuningiliziwe.

Inyoka enkulu echibini - emele ama-gastropods

I- large snorkel echibini , ejwayelekile emanzini ahlanzekile ezimila. Umzimba wakhe, njengawo wonke ama-gastropods, unenhloko, isiqu nomlenze. Ingxenye ephakathi ikhona ngaphakathi kwegobolondo eliphikisiwe ngokomoya, eliqukethe i-lime, elimbozwe umchamo wezinto ezinjengophondo. Lena uhlobo lwekhaya nokukhosela. Igobolondo lezinkukhu ezinkulu lithende. Isikhulu singu-4-5 izinguquko. Unomgodi obizwa ngokuthi umlomo. Ngalo, ikhanda nomlenze zihanjelwa ngaphakathi. Igobolondo le-snorkel enkulu echibini kanye ne-coil phondo uma ingozi ivaliwe nesembozo esikhethekile. Lesi sakhiwo ukuvikeleka okwengeziwe ezitheni.

Isakhiwo sechibi elikhulu

Kungani ama-mollusk ukuthi i-snake echibini imele, ebizwa ngokuthi i-gastropods? Konke mayelana nesakhiwo somzimba wabo. Phakathi kwezingxenye zalo azikho imingcele ecacile. Umlenze uyisimo sezintambo nezisisindo ngokugcwele ngokugcwele ingxenye yesisu yomzimba. Ubuso bayo buphuma emanzini, okuhlinzeka kalula nge-substrates ehlukahlukene kanye nefilimu e-aqueous.

Ekhanda lyoka enkulu echibini yi-pair of tentacles. Lezi yizitho zokuthinta. Uma ubathinta, i-mollusk izokhipha ikhanda ngaphakathi kwegobolondo. Ngaphansi kwe-tentacles kukhona amehlo. I-Proudoviks nayo inezinhlaka zokulingana. Bamelelwa ngamabhulebhu amancane, ngaphakathi lapho kukhona imizimba ekhethekile. Ukuguqulwa kwesimo salezi zakhiwo kugcina ukulingana kwe-mollusk.

Izinhlelo zokujikeleza nokuphefumula

Isibindi esikhulu sinesimiso sokujikeleza sehlobo olungavumelekile. Iqukethe inhliziyo enamacala amabili kanye nesistimu yamasongo. Igazi lixubana ne-fluid cavity, ukugeza zonke izicubu nezitho. Kusuka enhliziyweni kungena emithanjeni, futhi ngakwesinye isikhathi ihamba emithanjeni. Naphezu kokuthi inyoka enkulu echibini ihlala emanzini, iphefumula kuphela umoya-mpilo we-atmospheric. Ukwenza lokhu, isilwane siyahamba emanzini bese uvula umgodi wokuphefumula osekugcineni kwegobolondo. Iholela emaphashini, lapho i-oksijeni isetshenziswa ngegazi.

Izinhlelo ze-digestive ne-excretory

Ichibi elikhulu lihamba kancane kodwa ngokuqinisekile. Kungani ehlala "ehamba" njalo? I-mollusc isuka ekufuneni kokudla, isisuka ezintweni ezingaphansi kwamanzi ngosizo lomhlathi ne-grater. Lezi zinsuku zimelela imigqa eminingana yama-horny. Inqubo yokuhlukanisa izakhi ishesha ama-enzyme we-glands-digestive - izigulane ezisezingeni eliphansi nesibindi.

Ukuvula okuvulekile kuvulwa ngenhla kwekhanda lezinyoka. Futhi eduze kwalo kuvula umzila wesistimu ye-urinary. Lezi zinsuku zimelelwa izinso ezilodwa futhi zihamba nge-orifice.

Ukukhiqizwa nokuthuthukiswa

Ngokusho kohlobo lwenqubo yokuzala, inyoka enkulu echibini i-hermaphrodite. Lokhu kusho ukuthi emzimbeni wakhe, kwenziwa amangqamuzana omabili wesilisa nowesilisa. Ukufaka umquba kulezi mollusk kungaphakathi. Ngenxa yalokho, uyabelana nge-spermatozoa. Ama-molluscs afaka ama-zygotes ezintambo ze-gelatin, ezihlanganiswe nezinto ezingaphansi kwamanzi. Ngenxa yalokho, abantu abasha baqala ngegobolondo elincanyana.

Ngakho-ke, ake sithi: inyoka enkulu echibini imelela ama-gastropods. Lezi izakhamuzi ezijwayelekile zemizimba yamanzi ahlanzekile. Ama-Proudworms anezingxenye ezintathu zomzimba: ikhanda, i-trunk nomlenze, kanye negobolondo elipholile.