Kungani Volvox ukubizwa ngokuthi eziphilayo owumphumela? Isakhiwo Volvox ulwelwe

Ezweni kukhona abaningi kangaka eziphilayo ezimangalisayo encanyana. Uma othile weza ikhanda lami uhlu sezimangaliso eziyisikhombisa microcosm, le Volvox ulwelwe ngabe kulolu hla.

ulwelwe oluhlaza

Volvox - a ulwelwe oluhlaza. Zikhona ngesimo amakoloni. Kungani Volvox ukubizwa ngokuthi eziphilayo owumphumela? Impendulo kusikisela ngokwayo ulula: njalo zasolwandle kancane olulodwa futhi kuseli has flagella ezimbili nezinwele.

amaseli Single axhunyiwe ngu imicu ezondile cytoplasm nomunye, okuvumela leli koloni ukubhukuda kanyekanye. abameleli ngamunye ngaphandle izinwele futhi flagella futhi zinendawo elincane elibomvu, iso okuthiwa.

iseli kwamangqamuzana inika abameleli ulwelwe esiyingqayizivele. ikoloni Inkonde ngayinye ifakwe umshini unesiqalo nesiphetho, ngamanye amazwi, lo eliseNyakatho neliseNingizimu. Ngo esifundeni lokuqala oboné olwenzeka evelele of efihlekile athuthukile. Lokhu kusiza ulwelwe ukubhukuda ekukhanyeni. Ngakho, ikoloni eziphilayo owumphumela ngokubukeka, futhi kungase kudlule kuhle ukuba amaningi.

Volvox: isakhiwo

Lapho ebuzwa ukuthi kungani Volvox okukhulunywe eziphilayo njengoba owumphumela, kuyafaneleka ukusho ukuthi kuseli eyodwa lingafika ku 2 kwangu ububanzi (emakoloni emikhulu - up 2 cm), ukuze bakwazi kalula kubonakala ngeso lenyama. Ezinye ulwelwe axhunyiwe ngu sesigcilikisha ezondile cytoplasm.

Volvox ulwelwe akheke kahle elula. I ingaphakathi emaphakathi egcwele isikhwehlela. Wonke amaseli abe flagella ezimbili, okuyinto inamathelisiwe phambili ekupheleni. Ngamunye iseli iseli wenza umsebenzi walo okunomsoco, emishinini yokuphefumula kanye excretion. Ukuma kungenzeka eyindilinga, okweqanda, noma okusaqanda. Olwelwesini nayo imbozwe isikhwehlela. Iseli ngalinye has ukuba neso elilodwa ngesimo endaweni ethile e-front end.

ukukhiqizwa kabusha

ulwelwe Volvox ukukhiqizwa kabusha izindlela ngempela ezithakazelisayo futhi empeleni kuyathakazelisa. Abakwazi ukukhiqiza kabusha kokubili asexually futhi ngokocansi. Lapho sihlolisisa ungabona ukuthi iningi amakoloni kuyinto ezindaweni ezithile, ababiziweyo gonads.

Lokhu kuzakuba yisibonakaliso kundlu ukuveza asexual. Gonads amangqamuzana esekhulile emhlabeni yenkabazwe waleli qulo. La mangqamuzana ukhule futhi ibhekane uchungechunge ukwahlukana aze ahleleke ngendlela sphere ezincane. Kulokhu, lo flagella kukhona ngaphakathi umbuthano omusha. Ukuze ususe kubo, iseli kumelwe ujike wena ngaphandle.

Volvox kungaba ukukhiqiza kabusha ngokwabo njengoba ngokobulili. Thanda ukukhiqizwa kabusha asexual amaseli akhethekile buthelela emhlabeni yenkabazwe. amakoloni zesilisa nezesifazane wadala lamaseli ahlukahlukene lwegciwane.

Isidoda amaseli akhiwa division. Female ubulili amaseli musa ehlukana, kodwa umane ukwandisa ngobukhulu. Izinhlobo eziningi babe abesilisa amakoloni zesifazane. Abanye basanda kuhlanganyela hermaphrodites.

Volvox nokukhanya kwelanga

Okubukwa amaqembu amakoloni ngesibonakhulu ukukhanya kuyinto eyisimanga ngempela. Uma ushiya isikhala esanele ngaphansi cap agxumele, imikhakha omncane oluhlaza baqale kancane ukuntanta ngase backlight.

Volvox Kulula kakhulu ukuthola. Zonke badinga - kungcono pretty ehlanzekile amanzi afudumele, ecebile izakhamzimba. Isikhathi esikahle ukuba bagcine - ehlobo. Libutha a zezinhlobo ezimbalwa green kungabhekwa njengokuvikela ebhange nge amanzi "echibini ukuqhakaza" ulwelwe uzobe bangezi ekukhanyeni.

ukukhahlamezeka kwendawo

Kungani Volvox ukubizwa ngokuthi eziphilayo owumphumela? Asivume. Volvox has a isakhiwo owumphumela, ngeke sodvwa, kaningi yakha amakoloni eyindilinga abantu kufika ku-50 000. Akukona nje engqamuzaneni ephilayo encanyana. Kwenzeka izinqubo zawo ezibalulekile. Yingakho Volvox okukhulunywe eziphilayo njengoba owumphumela.

ukukhahlamezeka kwendawo Evumayo lezi ulwelwe kukhona amanzi ahlanzekile. Lezi nezilwanyana ezincane zitholakala amachibi, ube nemigodi ngemigodi ngisho emadamini engajulile. Volvox ulwelwe baphakathi omdala emhlabeni. Ngokusho imibono yososayensi, ngendlela wamakoloni wokuphila, babesalokhu eminyakeni million 200 edlule.

Volvox - umzimba athuthukile kakhulu hlobo. It yakha eyindilinga, ellipsoid noma koloni ovoid. Amaseli algal mangqamuzana ane-chlorophyll, ngakho bona ngokwabo ukunikeza ukudla ngenqubo ye-photosynthesis. Ngamunye cell ngabanye isebenzela ukuzuzisa wekoloni, + futhi bebonke + abe umzimba owodwa.