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- Yini ama-molluscs? Izinhlobo Nezibonelo
- Ukukhiqizwa kabusha kwama-molluscs
- Izibonelo zokukhiqiza kabusha kwama-molluscs
- Ukukhiqizwa kabusha kwama-molluscs: umnenke ovamile (Axakeke uHelix)
- Ukukhiqizwa kabusha kwama-molluscs: ama-oysters
THE ukukhiqizwa kabusha kwe-mollusc yehlukile njengezinhlobo ezahlukahlukene zama-molluscs akhona. Amasu okuzala ayashintsha ngokuya ngohlobo lwendawo abahlala kuyo, noma ngabe kuyizilwane zasemhlabeni noma izilwane zasemanzini, yize zonke zizala ngokocansi.
Kule ndatshana yePeritoAnimal, sizochaza ngokuningiliziwe kunjani ukukhiqizwa kwama-molluscs, kodwa okokuqala ake sichaze ukuthi ayini ama-molluscs, ezinye zezici zawo nemininingwane ebalulekile ngohlelo lwawo lokuzala. Ngokufanayo, sizonikeza imininingwane ngezibonelo ezimbili zokukhiqiza kabusha kuma-molluscs ngokwezinhlobo zezinto eziphilayo.
Yini ama-molluscs? Izinhlobo Nezibonelo
AmaMolluscs akha i-phylum enkulu yezilwane ezingenamgogodla, acishe abe maningi njengama-arthropods. Kunezinhlobonhlobo zama-molluscs, kepha onke abelana ngezici ezithile eziwahlanganisayo, yize ngayinye inokuzivumelanisa kwayo. Lezi zici esizishilo zifakiwe ezigabeni zomzimba wakho, ezihlelwe ngaphansi izifunda ezine:
- Eyodwa indawo ye-cephalic, lapho kugxila khona izitho zezinzwa nobuchopho.
- Eyodwa unyawo locomotive kunemisipha kakhulu ukukhasa. Le nyawo liguqulwa kwamanye amaqembu, njengama-cephalopods, onyawo lwawo lwaphenduka lwaba yizingqinamba.
- Indawo engemuva lapho sithola khona i- umgodi okhanyayo, lapho kutholakala khona izitho ezincanyana, izigaxa (kuma-molluscs wempilo yasemanzini) kanye nezitho zomzimba ezinjengendunu.
- Okokugcina, ingubo. Ingaphezulu lomgogodla womzimba, ofaka izakhiwo zokuzivikela ezinjengama-spikes, amagobolondo nobuthi.
Ngaphakathi kwe- izinhlobo ze-shellfish, kukhona amakilasi angaziwa kangako, njengesigaba seCaudofoveata noma isigaba seSolenogastrea. Lawa ma-molluscs abonakala ngokuba ne- ukuma kwesibungu nomzimba uvikelwe ngama-spikes.
Amanye ama-molluscs ane-morphology yakudala kakhulu, njengoba kunjalo ngama-molluscs angaphansi kwamakilasi i-Monoplacophora ne-Polyplacophora. Lezi zilwane zinonyawo lwemisipha, njengezinselele, futhi umzimba wazo uvikelwe ngegobolondo elilodwa, esimweni se-monoplacophoras, noma ngamaningana, uma kuba yiPolyplacophoras. Izilwane eziseqenjini lokuqala zibukeka njengezimbotshana ezine-valve eyodwa, kuthi ezesibili zibukeke njenge-arthropod edume kakhulu, i-armadillo.
Ezinye izinhlobo zama-molluscs amagobolondo ezilwane, njengoba igama liphakamisa, anakho konke umzimba uvikelwe yigobolondo esimweni sohlanga lwendlovu. Lezi zilwane zingezesigaba seScaphopoda, futhi zingezasolwandle kuphela.
Izinhlobo ezaziwa kakhulu zama-molluscs yilezi: ama-bivalve anjenge-clams, ama-oysters kanye nezimbaza; ama-gastropods afana neminenke nama-slugs; futhi, ekugcineni, ama-cephalopods, ayi-octopus, sepia, squid kanye nautilus.
Uma ufuna ukungena ujule emhlabeni wezimbaza, ungaphuthelwa i-athikili yethu ngezinhlobo ze-shellfish.
Ukukhiqizwa kabusha kwama-molluscs
Eqenjini lezilwane elihluke kakhulu kangako ukuthi, ngaphezu kwalokho, lingahlala ezindaweni ezihluke kakhulu, i- ukukhiqizwa kabusha kwe-mollusc futhi ihluke kakhulu futhi yavela ngokuhlukile ngokuya ngohlobo lwe-mollusk.
Ama-molluscs akhiqiza kabusha nge- ukukhiqiza kabusha ngokocansi, okungukuthi, ngaphakathi kohlobo ngalunye kukhona abantu abesilisa nabesifazane, ama-molluscs abesifazane noma abesilisa. Kodwa-ke, ezinye izinhlobo zinjalo i-hermaphrodites futhi yize iningi lingeke likwazi ukufaka umanyolo (ngoba lidinga ukuba khona komunye umuntu), izinhlobo ezithile zenza, njengoba kunjalo ngeminenke ethile yasemhlabeni.
Izinhlobo eziningi ze-mollusc zisemanzini futhi, kule ndawo, uhlobo oluyinhloko lokukhulelwa lungaphandle. Izinhlobo ezithile kuphela ezinazo ukukhulelwa kwangaphakathi, njengoba kunjalo ngama-cephalopods. Ngakho-ke, ama-molluscs asemanzini anokukhulelwa kwangaphandle. Kokubili abesifazane nabesilisa bakhipha ama-gametes abo emvelweni, bayavundisa, bakhule, bachamusele futhi baphile njengeziphungumangathi zamahhala kuze kufike esigabeni sabantu abadala, okuthi kwezinye izinhlobo zisebenze ngokweqile noma ngokukhasa, kanti kwezinye, kubhukuda mahhala.
Ama-molluscs asemhlabeni, angama-gastropods amaphaphu noma iminenke yasemhlabeni, ane- uhlelo lokuzala oluthuthuke kakhulu. Umuntu ngamunye unabesilisa nabesifazane bobabili, kepha angasebenza njengomuntu oyedwa ngesikhathi sokuya ocansini. Owesilisa wethula isidoda ngepipi kowesifazane, lapho amaqanda ezovundiswa khona. Ngemuva kwalokho insikazi izobekela amaqanda avundiswe emhlabathini, lapho ezokhula khona.
Izibonelo zokukhiqiza kabusha kwama-molluscs
Inani elikhulu lezinhlobo ezahlukahlukene zama-molluscs liyinkimbinkimbi ukuhlanganiswa kwencazelo mayelana ne-r yabo.ukukhiqizwa kwezimbazaNgakho-ke, sizochaza izibonelo ezimbili ezimele kakhulu zokukhiqizwa kwe-mollusc:
Ukukhiqizwa kabusha kwama-molluscs: umnenke ovamile (Axakeke uHelix)
Lapho iminenke emibili ifinyelela ebudaleni, ilungele ukwenza ukukhiqizwa kabusha kweminenke. Phambilini, ngaphambi kokuya ocansini, yomibili iminenke iyavumelana. Lo mqhudelwano uqukethe uchungechunge lokunyakaza okuyindilinga, ukuqubuzana nokukhululwa kwamahomoni, okungahlala emahoreni ayi-12.
Lapho iminenke isondele kakhulu, esikwaziyo njenge- "udoti wothando"Lezi zakhiwo ziyimicibisholo ekhulelwe ekhiqizwa ama-hormone ewela esikhunjeni somnenke futhi ikhuthaze impumelelo yokuzala. Ngemuva kocingo, enye iminenke ithatha ipipi endlebeni yayo Iphini lesitho sangasese futhi ahlangane nepore likazakwethu, ngokwanele ukuze akwazi ukufaka isidoda.
Ngemuva kwezinsuku ezimbalwa, isilwane esivundisiwe sizokwethula indawo yaso ye-cephalic emhlabathini omanzi bese sibeka amaqanda aso esidlekeni esincane. Ngemuva kwesikhashana, a iminenke eyikhulu okuncane kuzovela kuleso sidleke.
Ukukhiqizwa kabusha kwama-molluscs: ama-oysters
Ngokuvamile, lapho kufika inkathi efudumele namanzi olwandle yeqa ama-24 ºC, inkathi yokuzalanisa ama-oysters ifika. Lezi zilwane zikhiphela emanzini ama-pheromones akhombisa isimo sawo sokuzala. Uma lokhu kwenzeka, bobabili oysters besilisa nabesilisa khipha izigidi zamageyimu lokho kuzovundiswa ngaphandle kwemizimba yabo.
Ukukhula kwamaqanda kushesha ngokumangazayo futhi kungakapheli amahora ambalwa nje angena esigabeni sesibungu. Emasontweni ambalwa kamuva, ziwela phansi enamadwala, ngokuvamile ziholwa izimpawu zamakhemikhali ezivela kwamanye ama-oysters amadala. lezi zibungu Joyina i-substrate besebenzisa usimende abawenzayo futhi abazochitha impilo yabo yonke lapho.
Uma ufuna ukufunda izindatshana eziningi ezifana ne- Ukukhiqizwa kabusha kwama-molluscs: incazelo nezibonelo, sincoma ukuthi ufake isigaba sethu se-Curiosities somhlaba wezilwane.