I-Elysia curly: incazelo ye-gastropod mollusk, isithombe

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I-Elysia curly (i-Elysia crispata) noma i-plued sea slug ingeyohlobo lwama-mollusks, ama-gastropods ekilasi, ukuhleleka kwesikhwama. Kungeqembu le-Postibranch molluscs, elinama-gill anemiphetho ngendlela yamachashazi. Akukho okuningi okwaziwayo ngokuphila kwalezi zindawo zokujula zasolwandle ezijulile.

Igama elithi Elysia lihlotshaniswa nezinganekwane zasendulo zamaGrikhi. I-mollusk isebenzisa ebudlelwaneni be-symbiotic ne-algae, i-photosynthesis ivela ngosizo lwama-chloroplast.

Ukusabalala kwe-curly curly.

U-Elysia curly uhlala oLwandle lweCaribbean naseFlorida naseBermuda.

Izindawo ze-Elysia curly.

I-Elysia curly ikhetha imifula yamakhorali asezindaweni ezishisayo futhi itholakala ezindaweni ezihlala olwandle ezinenqwaba yama-algae, ikakhulukazi agcinwa ekujuleni kusuka esigamu semitha kuya kumamitha ayishumi nambili.

Izimpawu zangaphandle zokuqothuka.

I-Elysia curly inobukhulu obusuka kumasentimitha ama-5 kuye kwayi-15. Imisongo yengubo enemibala egqamile, efana nama-frill amahle aluhlaza okwesibhakabhaka, owolintshi, onsundu nephuzi, atholakala ezinhlangothini zomzimba. Lolu hlobo lwe-mollusk luyingxenye ye-photosynthetic, ngakho-ke ihlala ngokuvumelana nenani elikhulu le-algae eluhlaza.

I-Parapodia ngesimo samafolda amabili ezinhlangothini zomzimba kunikeza ukubonakala kwesici semollusk.

Umzimba womzimba we-visceral ohlanganisiwe ulele dorsally emlenzeni ophezulu wesilwane. I-Parapodia ibukeka ngamafolda amabili ebusweni bomzimba. Lokhu kubukeka kwesici kufana nehlamvu lethisi. Yize i-Elysia curly iyi-mollusk, ayinayo ingubo, ama-gill, kepha inomlenze ne-radula ("grater"). Isisetshenziswa samazinyo - i-radula - sitholakala esikhwameni sakhe esikhethekile sepharyngeal, yingakho igama lesikhwama linolimi. Ipharynx inemisipha futhi ingaphendulwa iye ngaphandle. Ngezinyo elibukhali, elifana nesitayela, imollusk ihlaba udonga lweseli lwama-algae acwebezelayo. Ipharynx idonsela kokuqukethwe nejusi yeseli iyagaywa. Ama-chloroplast angena emqubeni wesibindi futhi enze i-photosynthesis kumaseli akhethekile amakhulu we-epithelial, ahlinzeka ngemollusk ngamandla.

Ukukhiqizwa kabusha kwe-curly.

Imollusk Elysia curly iyi-hermaphrodite eyakha amaseli wesilisa nowesifazane. Ngesikhathi sokukhiqiza kabusha ngokocansi, ama-mollusk amabili akhipha isidoda, esikhishwa ngokuvuleka okuvela ezithombeni zesisu zezitho zobudoda.

Isidoda singena ngaphakathi bese sivundisa amaqanda endlala yowesifazane.

Ukufakwa kokukhulelwa kwangaphakathi kwenzeka. I-Elysia curly ibeka inani elikhulu lamaqanda uma kuqhathaniswa nezinye izinhlobo zohlobo lwe-Elysia, ubukhulu bokubamba buba ngamaqanda angama-30 kuye kwangama-500. Ngemuva kokubeka amaqanda ngoJuni noma ekuqaleni kukaJulayi, imollusk iyafa ekupheleni kukaJulayi.

Akunabufakazi bokunakekelwa kwenzalo kulolu hlobo lwe-nudibranch mollusk. Isikhathi sempilo se-Elysia curly asikasungulwa ngokwemvelo, kepha izinhlobo ezihambisanayo zinempilo engaphansi konyaka.

Ukuthuthukiswa kwe-curly elision.

Ekukhuleni kwayo, i-Elysia curly ihamba ngezigaba eziningana zokukhula, iqala ngeqanda, bese kulandela isigaba sezibungu, u-Elysias osemncane udlulela esigabeni sabantu abadala.

Ububanzi bamaqanda bungaba ama-microns ayi-120, ngemuva kwezinsuku eziyi-15 kuvela izibungu.

Izibungu zingama-microns angama-290 ngosayizi. Ngemuva kwezinsuku ezinhlanu, izibungu ziyafana nama-elysias amadala.

Ama-molluscs amancane angama-microns angama-530 ubude. Bahlala endaweni ekhanyisiwe, banganyakazi baze bavuthwe. Abantu abadala bathola ama-plastid kusuka ku-algae oboshelwe ngamagciwane afana ne-Halimeda incrassata ne-Penicillus capitatus.

Izici zokuziphatha kwe-Elysia curly.

I-Elysia curly esimweni somuntu omdala ihamba ibanga elifushane, izibungu zihola impilo yokuhlala, zithola amandla emthonjeni okhanyayo. Lolu hlobo luyi-hermaphrodite futhi luzohlangana nomunye umuntu ukuze lukwazi ukuzala kabusha. Akukho lwazi ngokuziphatha kwabo emphakathini.

Usayizi wendawo nezindlela zokuxhumana.

Akukho lwazi olutholakala ngosayizi wendawo ngayinye nokuziphatha kweqembu. Emvelweni wamanzi, ama-elysias asontekile atholana ngosizo lwe-secretion mucous futhi, lapho behlangana, bathintane ngosizo lwe-tentacles. Indima enkulu yokuxhumana nemvelo kungokwamaseli we-chemoreceptor. Ama-Chemoreceptors asiza ukuthola ukudla, agweme izilwane ezidla ezinye, atholakale ubuthi emanzini, futhi athole abalingani phakathi nenkathi yokuzalanisa.

Ukudla okugoqiwe kwe-Elysia.

I-Elysia curly iyisidalwa esidla ubhedu. Isebenzisa ulwelwe lweseli lwe-algae, kepha ayigayezi ama-chloroplast. I-sea slug isebenzisa i-radula ukubhoboza amaseli e-algal, futhi imunce okuqukethwe ngaphandle ngomphimbo wayo.

Ama-chloroplast avela ku-algae angena ngamaphaseji athile kumgudu wamathumbu futhi agcinwa ku-parapodia.

La ma-chloroplast angahlala engashintshi futhi ahlala ku-mollusk isikhathi esingangezinyanga ezine, i-photosynthesize, ifaka amandla okukhanya. Lobu budlelwane bokuphikisana bubizwa nge-kleptoplasty. Kube nokuqinisekiswa kokuhlolwa ukuthi izinhlobo ezihlobene eduze zezinwele ezisontekile zika-Elysia zihlala ebumnyameni izinsuku ezingama-28 kuphela. Izinga lokusinda lifinyelela ku-30%, izinto eziphilayo ekukhanyeni zisinda ngokuphelele. Imiphumela inikeza ubufakazi bokuthi ama-nudibranchs athola amandla angeziwe emisebenzini yawo ebalulekile, evala isikhala sokungabikho komthombo oyinhloko wokudla - ulwelwe.

Isimo sokonga se-Elysia curly.

I-Elysia curly ayinaso isimo sokongiwa. Ku-ecosystem yasolwandle, kuyisixhumanisi sokudla esisezintweni zokudla. Izipanji, ama-polyps, ama-tunicates adla ama-nudibranchs. Izinhlobo ezimibalabala ze-Elysia curly ziheha abathandi bezilwane zasolwandle, abazibeka emakhorali nasemadwaleni ase-aquarium. I-Elysia curly, njengezinye izinhlobo eziningi zama-molluscs anemibala, iyinto ethengiswayo. Lapho ufaka imollusk exotic ohlelweni lokufakelwa, kuyadingeka ukuthi ujwayele isikhathi sabo sokuphila ezimweni zemvelo kanye nezici zokudla okunempilo. I-Elysia ayihlali isikhathi eside e-aquarium, ngenxa yomjikelezo wokuphila wemvelo omfushane nezinto ezikhethekile zokuthola ukudla.

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