Cephalopods: incazelo emfushane isigaba

Cephalopods anegunya kakhulu ekilasini uhlobo molluscs. Njengomthetho, amalungu aleli qembu elithi ukuphila emanzini zasolwandle kanye uthanda ezishisayo noma sezulu nakwezifudumele. Nokho, kunezinhlobo zezitshalo ezingu ziphile ezimweni inesimo sezulu esipholile, kuhlanganise izindawo ezibandayo.

Class Cephalopods: body building

NgoLwesine kutholakale isidumbu sendoda leli qembu libhekene wesimethri zamazwe amabili futhi wahlukanisa ngokucacile ibe izingxenye ezimbili eziyinhloko - inhloko kanye esifubeni. Umlenze clams ngokuhamba yokuziphendukela kwemvelo iye baguqulelwa uphondo futhi ibekwe emhlabeni tentacles wakhe. Kepha lapho zigezwa khona, khona-ke lezi zinhlobo okuthuthukile kuyehla futhi ngaphansi kwesikhumba (kungenzeka ukuthi ingabi khona). abameleli lwasekuqaleni zinezikhathi igobolondo esikhulu yangaphandle nge sebuningini amakamelo ehlukene.

Isikhumba, ehlanganisa umzimba, siqukethe ungqimba elilodwa epithelium futhi zezinzwa izicubu ungqimba. By the way, izinhlobo ezithile babe chromatophores sombala amaseli, lapho umzimba ungakwazi ukushintsha umbala, ekubeni cishe ezingabonakali ngokumelene isizinda imvelo.

Ohlangothini ventral yomzimba isiphuku kuyinto umgodi kulo Amapayipi evulekile ngokobulili futhi izinhlelo excretory, futhi ingquza.

Cephalopods zisebenzisa ngendlela ethakazelisa kakhulu ukuhamba. Namandla imisipha Kufinyeta ibenze amanzi kusuka ngaphakathi komgodi isiphuku ku imvelo, udala amandla okunyanyekayo.

Cephalopods: isakhiwo sangaphakathi

Isimiso sokugaya ukudla bungene. Kuphela bonke amalungu esigaba iqembu ezidla. I inyamazane eziyinhloko ezinamagobolondo, inhlanzi encane futhi nezinye ezinamagobolondo. isilwane Okokuqala ithumba inyamazane usebenzisa tentacles yayo. Kuyathakazelisa ukuthi kwezinye zilwane nezindlala salivary ukukhiqiza ushevu ashaqe yesilwane somhlatshelo. Ngokulandelayo, ukudla ikufanele emihlathini Horny onamandla, bese ingena emphinjeni. I pharyngeal ingaphakathi Amapayipi evulekile nezindlala salivary, okuyinto inhlabamkhosi polysaccharides futhi izingxenye amaprotheni. Ukuze bolus ngomphimbo kuya esiswini, okuyinto ngathonywa isibindi kanye enzyme pancreatic. ukudla okugayiwe bephushelwa emathunjini, okuyinto iphela ingquza.

By endleleni, abanye izilwane alesi sigaba abe idivayisi ekhethekile - okubizwa ngokuthi "inki sac", equkethe-matter emnyama. Lapho inkulu khona ingozi imfihlo aphume isikhwama jetted ngokusebenzisa ingquza, okwenza kube kungenzeka ngokushesha ukufihla silwanyana.

uhlelo zokuphefumula siqukethe gills eyakheke kahle awo ezilungiswe ezinhlangothini ngalo ingaphakathi e isiphuku. ngabodwa uhlelo siqukethe 2 - 4 nezinso.

Ihlelo lokukhambisa iingazi nayo athuthukiswe kahle futhi siqukethe inhliziyo, imithambo yegazi, nalokho okubizwa ngokuthi "izinhliziyo gill", elinikeza namachibi igazi okusizwa ukushaya. Kuyathakazelisa ukuthi njengoba sombala zokuphefumula ezitholakala abanye abameleli kakhiye, equkethe zethusi. Yingakho igazi ingwane okwesibhakabhaka.

Kufanele kuqashelwe ukuthi lesi sigaba kwezilwane ine amaningi asethuthukile isimiso sezinzwa zonke ezingenamgogodla. Shona ganglia babemboza into efana Nogebhezi lwawo. Izitho umuzwa - kwamehlo, ukuzwela mechanical lokuhogela - is kahle asethuthukile.

Cephalopods: abameleli aziwa kakhulu ase-isigaba

Ilungu ngalinye cephalopod has izici zayo siqu esiyingqayizivele, ezincwadini amazing ukuzingela ukuphila ekujuleni kolwandle.

Ngokwesibonelo, cuttlefish cishe uchitha sonke isikhathi sakhe wangcwatshwa isihlabathi ezansi ichibi. It ishiya evulekile kuphela emehlweni - kuyasiza ukubona inyamazane ngokushesha.

Octopus - omunye cephalopod abadumile, okuyinto ukhetha ukuphila phansi enamadwala. Lapha, it can kahle esingalindelekile bese ufihle eduze itshe. Unyawo sesilwane sehlukaniswe tentacles eziningana ukuncela ohlangothini kwangaphakathi.

Elinye iqembu owaziwa - squid, okwamanje kubhekwe ukuba amalungu esheshayo futhi kunazo asebenzayo we ekilasini.