Uhlobo Coelenterates: izici jikelele

Elinye lamaqembu lokuqala izilwane ezinamangqamuzana amaningi - thayipha Coelenterates. Ibanga 7, okubandakanya Yiqiniso kwezilwane uhlola ngokuningiliziwe zonke izici kwesakhiwo zalezi zidalwa ezimangalisayo. Ake waphinda ukhumbule lokho ababeyikho.

Thayipha Coelenterates: Biology

Qamba iyunithi ehlelekile kwalezi zilwane kwakubangelwa isakhiwo igama elifanayo. Ibizwa ngokuthi ingaphakathi emathunjini, nabameleli bayo babe zonke izinhlobo: polyp futhi ehola ukuphila kuvikelwe, futhi ngenkuthalo ezihambayo jellyfish. Izici ezifana coelenterates njengoba khona namangqamuzana akhethekile. Kodwa naphezu lesi sici okuqhubekayo isakhiwo umzimba kwalezi zilwane ingeyona lezi kwezicubu.

ukukhahlamezeka kwendawo kanye ukusebenzisa

Lezi lokuqala lezi zilwane ezinamangqamuzana amaningi kungatholakala amanzi aqabulayo nosawoti nezinezimo ezahlukene zezulu. Thayipha Coelenterates (7 ekilasini esikoleni olunzulu imininingwane uhlola isihloko) kanye imelelwa zezinhlobo encane nge ububanzi a kwangu ambalwa, futhi-jellyfish giant nge tentacles eside kuze kube ngamamitha ayi-15. Ngakho-ke, isimo kwesigubhu, ukuthi bahlala kuphi, kungaba ezahlukene. Ngakho, ezincane angenasawoti Hydra bahlala amachibi ezincane, futhi ama-coral polyp beyokwakha amakoloni enkulu ezilwandle ezishisayo.

Uhlobo Coelenterates: izici jikelele

Umzimba uqukethe zonke coelenterates izinhlobo cell eziningana, ngayinye yaba wenza umsebenzi othile, ofana emizimbeni kanzima ahlelwe izilwane.

Isici eyinhloko coelenterates - kuba phambi amaseli kabuhlungu. Zakhiwa capsule lapho intambo ezisontekile kokuba ukuphela abukhali. amaseli eziphezulu izinwele ebucayi. Lapho uthinta umzimba isisulu ke osebenzisa futhi glares at amandla akhe. Ngenxa yalokho, it has paraliziruyuschee umthelela. Ngemva kwalokho, usebenzisa tentacles abameleli lolu hlobo ibekwe umhlatshelo mafutha anciphisa isikhala esingaphakathi emathunjini. Futhi inqubo ukugaya of udaba eziphilayo iqala lapha. Futhi amsize ekufezeni amaseli wokugaya ukudla bese yezindlala.

Coelenterates uhlobo elinesimo izinga eliphakeme ukuvuselelwa. Ososayensi baye babonisa ukuthi Hydra angenasawoti ungalulama ngokuphelele emzimbeni 1/200 ingxenye. Futhi mhlawumbe lesi ngenxa yokuba khona amangqamuzana Lesisemkhatsini. Amemezela ngentshiseko ukwabelana, futhi isishiya zonke ezinye izinhlobo. Coelenterates futhi akwazi ukuzala ngokusebenzisa nokuhlanganiswa amaqanda nesidoda.

Njengoba amangqamuzana ezinzwa e chithi saka emzimbeni, ofeza ubuhlobo imvelo kanye zokuhlanganisa kube ebumbene. Ngakho, kuyathakazelisa kakhulu ukuhamba omunye abameleli coelenterates - Hydra. Ngenxa umsebenzi ngokusebenzisa amangqamuzana esikhumba somuntu kanye muscle unjengezwe acrobat, ezihambayo kusukela ekhanda kuya ematheni, okwenza manje somersault.

izinqubo ezibalulekile coelenterates

Coelenterates uhlobo elinesimo zomzimba eziyinkimbinkimbi kuka ababengaphambi zabo - protozoan futhi neziponji. Nakuba zikhona izimpawu ezivamile. Ngokwesibonelo, negesi lokushintshisana usaqhubeka ngokusebenzisa nesembozo, futhi izakhiwo ezikhethekile kule bengekho.

Ngenxa ngokusebenzisa amangqamuzana esikhumba somuntu-imisipha, jellyfish labo abazokwazi jet ngamandla. Lokhu kunciphisa insimbi zabo, amanzi bephushelwa ngamandla, okubangela push reverse.

Zonke coelenterates kukhona nezilwane ezidla inyama. Nge tentacles isizinda ngomlomo ingena emzimbeni. Ukusebenza kahle kwenqubo eqhekeza ngesikhathi esifanayo kwafakazela khona ezimbili zama-ukugaya: ingaphakathi kanye neselula.

Ukuze coelenterates libhekene khona impendulo umzimba stimulation - ikhaliphe. Kuphakama ekuphenduleni imiphumela mechanical noma amakhemikhali imvelo. A jellyfish unemfundo ekhethekile ebucayi ukuhlinzeka nokugcina umzimba balance, futhi bezibona ukukhanya.

Ukuguquguquka kwempilo

Thayipha Coelenterates futhi libhekene yokuthi abaningi zinhlobo zayo emjikelezweni wokuphila kukhona alternation izizukulwane. Ngokwesibonelo, polyp Aurelia liphindaphindeke okukhethekile asexually ngokusebenzisa Olufufusayo. Ngokuhamba kwesikhathi, umzimba omunye wabo lihlukaniswe by nokuminyaniseka transverse. Ngenxa yalokho, kukhona jellyfish ezincane. Ngokubukeka, Babukeka njengezihlahla isitaki yezingqimba zomhlaba. Kwagcina ngokuthi eze off phezulu bese uya yokuphila ezimele futhi esebenzayo.

Kushintshana ngokobulili futhi asexual isizukulwane sokuphila coelenterates ikhuthaza ekwandiseni ngesibalo futhi iyashelela yabo zisakaza.

Kufaka uthayiphe Coelenterates amakilasi, ama-polyp kungukuthi wajinge wanamatsela. Bakha amakoloni bobunjwa yinqaba. Lokhu-coral polyp. Akukho alternation izizukulwane nasemanzini agelezayo Hydra. Bona ukukhiqiza kabusha by luthela ihlobo noma ekwindla iya ku ukuzala, bese befa. Amaqanda avundiswa ngidlulise nobusika ezansi amadamu. Futhi entwasahlobo ka ekuthuthukiseni Hydra zabo ezincane.

A ezihlukahlukene coelenterates

Uhlobo Coelenterates ngokwemvelo imelelwa eziphilayo ezimbili: polyp kanye jellyfish. Omunye abameleli ezithakazelisa kakhulu iqembu sokuqala actinium. Lokhu owakhileyo ezilwandle ezifudumele ezishisayo, okuyinto, sibonga umbala, libukeka imbali kumnandi. Ngakho, igama lesibili ka actinium - ulwandle anemones. Phakathi kwabo kukhona isihlungi esebenza ngogesi nasezilwaneni eziyingozi. Futhi ezinye izinhlobo ulwandle anemones ongangena letihlomulisa co-khona kanye izinkalankala unkom 'idlayodwa.

Polyp unekhono ukuhambahamba futhi udle izinsalela organic eyisinambuzane ukudla. Iseli umdlavuza ivikelwe esintinyelayo ulwandle anemones. Ngokuthakazelisayo, ukushintsha ngezikhathi zika, yena utshala khona futhi polyp. Umdlavuza ayiphulule Anemone izimpiko, ukuyishiya wedwa inyonyoba ibe ikhaya elisha.

A ikoloni coral polyp akha cluster omkhulu. Ngokwesibonelo, i-Great Barrier Reef welula nasogwini Australia phezu ibanga lezingalo eziyizinkulungwane 2 km.

Okusho coelenterates ngokwemvelo futhi ukuphila komuntu

coelenterates Abaningi kungaba yingozi ezilwaneni nakubantu. Usebenza amaseli wabo esintinyelayo kubangela ukusha. imiphumela yabo ngoba umuntu angase amajaqamba, ikhanda, ukuphazamiseka ezisekujuleni kwenhliziyo futhi izitho zokuphefumula. Uma isikhathi kungasizi, futhi kungenzeka ukufa.

Polyp kanye jellyfish zinendima ebalulekile uchungechunge supply izakhamuzi amanzi. A-coral emazweni amaningi asetshenziswa ekwenzeni imigexo, eziyisikhumbuzo nasezintweni zokwakha.

Ngakho, hlobo Coelenterates, isici jikelele okwaxoxwa ngalo lapho, imelelwa amafomu amabili ukuphila. It polyp kanye jellyfish. Lezi zilwane zinezikhathi wesimethri osabalalayo, khona namangqamuzana akhethekile alternation izizukulwane emjikelezweni wokuphila.