Video: Yuav ua li cas porifera reproduce asexually?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Daim txhuam cev muaj yug me nyuam kev sib deev thiab asexually . Tom qab fertilization nyob rau hauv daim txhuam cev, ib tug larva yog tso rau hauv dej. Nws ntab nyob ib ncig ntawm ob peb hnub thiab tom qab ntawd lo rau hauv cov khoom kom pib nws txoj kev loj hlob mus rau hauv tus neeg laus daim txhuam cev. Daim txhuam cev kuj muaj peev xwm yug me nyuam asexually ntawm budding.
Ntxiv mus, yuav ua li cas porifera reproduce?
Daim txhuam cev yug me nyuam los ntawm ob qho tib si asexual thiab kev sib deev. Feem ntau poriferans uas yug me nyuam los ntawm kev sib deev txhais tau tias yog hermaphroditic thiab tsim qe thiab phev ntawm lub sijhawm sib txawv. Cov phev feem ntau "tshaj tawm" rau hauv cov dej. Qee cov sponges tso lawv cov larvae, qhov twg lwm tus khaws lawv rau qee lub sijhawm.
Tsis tas li ntawd, peb txoj kev sponges yog dab tsi? Daim txhuam cev muaj peb poj niam txiv neej txoj kev ntawm kev yug me nyuam : tom qab fragmentation; ntawm budding; thiab los ntawm kev tsim cov gemmules. Fragments ntawm daim txhuam cev tej zaum yuav raug cais los ntawm cov dej ntws los yog nthwv dej.
Tom qab ntawd, lo lus nug yog, dab tsi yog cov qauv ntawm asexual reproduction nyob rau hauv porifera?
Sponges muaj peev xwm rov tsim dua ob qho tib si kev sib deev siv gametes thiab asexually los ntawm tawg . Txawm hais tias daim txhuam cev yog hermaphroditic, cov tib neeg tsuas yog ua ib hom gamete ib zaug. Muaj ob hom kev yug me nyuam asexual uas sponges tuaj yeem dhau mus: sab nraud tawg thiab sab hauv tawg.
Gemmules tsim nyob rau hauv daim txhuam cev li cas?
Ib tug asexually tsim loj ntawm cov hlwb, uas muaj peev xwm tsim mus rau hauv ib tug tshiab kab mob los yog mus rau hauv ib tug neeg laus cov dej qab zib. daim txhuam cev hu ua a Gemmule . Asexual reproduction yog tsuas yog nqa tawm los ntawm budding thiab kuj los ntawm gemmulation. Internal buds, uas yog tsim los ntawm cov dej tshiab daim txhuam cev npe as gemmules.
Pom zoo:
Yuav ua li cas plantlets reproduce?
Plantlets yog cov tub ntxhais hluas los yog me me clones, ua rau ntawm nplooj nplooj los yog lub dav hlau stems ntawm lwm cov nroj tsuag. Ntau cov nroj tsuag xws li kab laug sab nroj tsuag ib txwm tsim stolons nrog cov nroj tsuag ntawm qhov kawg ua ib daim ntawv ntawm kev yug me nyuam asexual. Ntau cov nroj tsuag reproduces los ntawm pov tawm ntev tua los yog runners uas yuav loj hlob mus rau hauv cov nroj tsuag tshiab
Yuav ua li cas cov kab mob reproduce los ntawm binary fission?
Bacteria reproduce los ntawm binary fission. Nyob rau hauv tus txheej txheem no tus kab mob, uas yog ib tug cell, faib mus rau hauv ob lub cell tus ntxhais zoo tib yam. Binary fission pib thaum DNA ntawm cov kab mob faib ua ob (replicates). Txhua tus ntxhais cell yog clone ntawm niam txiv cell
3 yog vim li cas cov nroj tsuag tau propagated asexually?
1. khaws cia cov yam ntxwv ntawm caj ces ntawm ib tsob nroj; 2. kom nthuav tawm cov nroj tsuag uas tsis tsim cov noob zoo (txiv tsawb, pineapple, txiv hmab txiv ntoo tsis muaj noob, thiab lwm yam); 3. rau propagate nroj tsuag uas tsim cov noob uas nyuaj rau germinate los yog muaj ib tug luv luv cia lub neej (cotoneaster, willow); 4. hla tus menyuam yaus
Yuav ua li cas cov kab mob reproduce asexually?
Cov xeeb leej xeeb ntxwv tsim los ntawm asexual reproduction yog genetic zoo tib yam rau lawv niam lawv txiv. Cov kab mob reproduce asexually nyob rau hauv ntau txoj kev. Prokaryotes, suav nrog cov kab mob, rov ua dua qub los ntawm kev faib cell. Budding tshwm sim thaum lub bud loj hlob ntawm ib tug kab mob thiab loj hlob mus rau hauv ib tug tag nrho-loj kab mob
Yuav ua li cas anthozoa reproduce?
Anthozoans tseem nyob polypoid thoob plaws hauv lawv lub neej. Lawv tuaj yeem tsim tawm tsis zoo los ntawm kev tawg lossis tawg, lossis kev sib deev los ntawm kev tsim gametes. Ob gametes yog tsim los ntawm polyp, uas muaj peev xwm fuse kom nce mus rau ib tug dawb-ua luam dej planula larva