Asho begazi ukuveza asexual ezitshalweni?

Ukwandisa inani labantu kwezinhlobo - umsebenzi obaluleke kakhulu kwanoma iyiphi umzimba. Yingakho, kanye ukuzala asexual yavela. Izitshalo ingashintshwa ukuze ukusabalalisa ngempumelelo, ngokusebenzisa izitho zomzimba wakhe. Asho begazi ukuveza asexual? Yiziphi emihle nemibi le ndlela?

Kuyini ukukhiqizwa kabusha asexual?

Omunye imigomo ye khona eziphilayo - ukudlala uhlobo zabo. Ukuze uxazulule le nkinga, izitshalo, izilwane, ama-bacterium, nezinye amalungu izwe yemvelo baye bathola izindlela zabo ukwandisa isibalo. Ayikho ukukhiqizwa kabusha wonder wabelwe komunye kwemigomo zonke ekuphileni kanye nokukhula, amandla umzimba, i-ukuqinisela imvelo yangaphakathi, nokunye. D.

ukukhiqizwa kabusha Asexual - kuyindlela lapho iqhaza lwegciwane amaseli ayidingekile. Gametes ukudlala indima ebalulekile ekwakhekeni izinto ezintsha umbungu zofuzo Nokho, ngaso sonke isikhathi ukuthi ushintshele ku ngokobulili ukukhiqizwa kabusha indlela. Asho begazi ukuveza asexual?

Kwamanye eziphilayo, ezifana amagciwane - kungcono indlela kuphela ukwandisa ubukhulu labantu. Kukho konke ngezilwane noma ngezitshalo emhlabeni asexual futhi ukuzala kudingeka ngesilinganiso elinganayo. Uma kuqala isetshenziselwa ukwanda belinani inombolo, kwesibili - ikhwalithi (ie ushintsho zofuzo).

Izinhlobo ukuveza asexual

Ukudlala uhlobo yabo ngesivinini - lokho kusho ukuthini begazi ukuveza asexual eziphilayo. Lolu hlobo imifanekiso amadala, futhi ngenxa yalokho ukubusa yayo iphakama ekuthuthukiseni ongaphakeme umzimba. Okulandelayo izokwethulwa izinhlobo ukuveza asexual, okungase kwenzeke emaqenjini ehlukene taxonomic.

1. ukuqoqwa Binary. Lolu hlobo imifanekiso ejwayelekile iningi abameleli prokaryotes lenyama. Iseli yakha ukwahlukanisa transverse okuyinto uhlukanisa ke ngesigamu, kanjalo ukwakha amaseli ezimbili indodakazi.
2. Schizogony. Le ndlela kungase kubhekwe njengokwelapha inguqulo ethuthukisiwe besigaba kanambambili, lapho iseli eba ezingaphansi eziningana. Okokuqala ihlukaniswe core, bese - iseli uqobo. Lolu hlobo esiphelweni kungabonakala nasemkhakheni emjikelezweni wokuphila Sporozoa (isib Plasmodium falciparum), kanti ezinye ulwelwe.
3. Olufufusayo. Naphezu inkimbinkimbi ukuqoqwa kanambambili futhi schizogony, akuzona zonke izinto eziphilayo, lezi izindlela zizalela ungalunga. Ngenxa yalezi metazoans bakudala njengoba Coelenterates, ebonakala luthela - kumiswa indikimba entsha ku yayifanekisela nomxhantela ifomu, okuyinto kuqala exhunywe kwi-ngazinye umzali, bese off. Uma "izinso" esinjalo inqanyuliwe, beyokwakha amakoloni eziphilayo eziningana. Olufufusayo futhi isici imvubelo.
4. Ukuhlukana. Lokhu ukukhiqizwa kabusha kusekelwe uhlobo ekhonweni lomzimba lokukwazi ukwenza kabusha. Kuyinto isici planarians, nemerteans, izipanji, abanye ulwelwe filamentous. Lapho mechanical umonakalo umzali ngamunye kungenziwa ihlukaniswe yaba izingxenye eziningana, ngayinye yaba simenza umzimba omusha.
5. Sporulation noma spore kumiswa. Uhlobo kakhulu okuqhubekayo ukuveza asexual, njengoba kusaqhuba impikiswano kuyinto exchange kolwazi zofuzo. Ngenxa yalokho, i-genotype wozalo luka Kuthi sihlukile izinyoni umzali. Sporulation kungabonakala nasemkhakheni isikhunta, ulwelwe, horsetails, Izinhlobo, moss, moss.

Asho begazi ukuveza asexual izitshalo?

Umbuso isitshalo sehlukaniswe spore nenzalo. Lo mqeqeshi owake wapheka zihlanganisa wona, horsetails wona club, Izinhlobo, futhi owesibili - gymnosperms futhi angiosperms. ukukhiqizwa kabusha Asexual izitshalo spore ngokuyinhloko kwetinhlavu ezinhlamvu. Ngo gymnosperms futhi angiosperms sporulation uhlala njengoba isinyathelo Lesisemkhatsini ukuvela gametes (microspores futhi megaspory). Lokuzaliswa ngokusebenzisa izitho zomzimba - yilokho okushiwo begazi ukuveza asexual ezitshalweni.

ukukhiqizwa kabusha vegetative sici kuphela kwezinhlobo athuthukile of flora, futhi kuba uhlobo kuphela ukuveza asexual. Kulesi ndlela spore kukalutshwana kakhulu. Yilokho esinye isici, ibaluleke ngani begazi ukuveza asexual ezitshalweni.

Kangakanani ukukhiqizwa kwezinhlobo vegetatively?

1. Ukuguqulwa stem. Lezi zihlanganisa ama, amakhomu, rhizomes, stolons, nezilimo eziyizigaxa, amadevu. Ngezinye lezi zitho isitshalo akhiwa efihlekile esingesihle kuyiphi amahlumela zikhule. Le ndlela yokuzala kungatholakala ngesikhathi Tulip, Narcissus, u-anyanisi, amajikijolo, iris, ama-strawberry, amazambane kanye nokunye. D.
2. Umsuka nezilimo eziyizigaxa (korneklubni). Lezi izidumbu izimpande adventitious, okuyinto Stocking izakhamzimba. Korneklubnyami zohlobo violet, iJerusalema i-artichoke, dahlia.
3. Cuttings. Ukwabelana - kuyinto iyiphi ingxenye stem, equkethe okungenani oyedwa node adventitious efihlekile. Ngezinye izikhathi kwanele ukuzalela ishidi ngaphandle stem. Izibonelo izitshalo: Begonia, Fuchsia, Dracaena, njll ...

Iqhaza begazi ukuveza asexual izitshalo

Inqubo gamete kumiswa kuxhomeke ezicini eziningi. Ngokuvamile, ukukhiqizwa kabusha asexual ungalunga kakhulu, ngoba kungaba kwenziwe ngaphandle ukubandakanywa gametes. Ukuze izitshalo spore ngokuphelele iyona Isakhi esiyinhloko umjikelezo wokuphila. Ukuze imbewu - kabusha vegetative, lapho ungakwazi kalula ukwandisa isibalo ngabanye.

Asho begazi ukuveza asexual? Lokhu ngeke ijubane kuphela, kodwa futhi lula inqubo. Uma ukuzala izimo elikhulu kwemvelo okudingekayo ukuvuthwa zalesi sihlahla, le asexual kungenzeka cishe yisiphi isikhathi somuntu sokuphila.

Nokho, esiphelweni vegetative has nezihibe. Ngokwesibonelo, nale hlobo imifanekiso kungekho exchange kolwazi zofuzo. Lokhu kusho ukuthi lesi sitshalo hhayi bazivumelanisa inani izizukulwane nezimo ezintsha kwemvelo, futhi lokhu kungaholela ekulahlekelweni labantu ukufaniswa etholwe.

Ukusetshenziswa yokuzalana kwabantu asexual izitshalo

Inqubo yokukhiqiza butjha kabanzi lisetshenziswe ibhizinisi. ukukhiqizwa kabusha vegetative zezitshalo ivumela ukuhlwanyela amapheshana enkulu ezweni amazambane, u-anyanisi, u-beetroot, izaqathe, ama-strawberry, ama-sitrobheli nokunye. D.

Futhi esiphelweni vegetative ivumela ukwandisa inani aklaba, imifino, izitshalo Ornamental, ukuthuthukisa ukumelana izitshalo ukuba kwezimo zendawo ezimbi nge inoculation.