Yuav ua li cas phylum platyhelminthes yug me nyuam?
Yuav ua li cas phylum platyhelminthes yug me nyuam?

Video: Yuav ua li cas phylum platyhelminthes yug me nyuam?

Video: Yuav ua li cas phylum platyhelminthes yug me nyuam?
Video: Tupao Xiong & Nhia Chang - Kuv Tsis Paub Yuav Ua Li Cas (Original) 2024, Hlis ntuj nqeg
Anonim

Lawv koom nrog kev sib deev thiab asexual kev yug me nyuam , nrog lub hom phiaj ntawm kev yug me nyuam sib txawv ntawm hom. Asexually, flatworms procreate los ntawm fragmentation thiab budding. Vim a flatworm yog hermaphroditic, nws muaj peev xwm tsim qe nyob rau hauv nws lub cev thiab fertilize lawv nrog phev, kuj generated nyob rau hauv nws lub cev.

Ib yam li ntawd, koj tuaj yeem nug, platyhelminthes puas tuaj yeem tsim tau?

Feem ntau flatworms yog hermaphrodites, kab mob uas muaj ob leeg txiv neej thiab poj niam cev xeeb tub. Raws li qhov tshwm sim ntawm tus yam ntxwv no, lawv muaj peev xwm yug me nyuam asexually thiab kev sib deev. Platyhelminthes muaj peb txoj kev uas lawv tuaj yeem tsim tawm : Lawv ua tau fertilize lawv cov qe.

Qhov thib ob, flatworms sai npaum li cas yug me nyuam? Los ntawm cov txheej txheem hu ua "fission," planarians tuaj yeem yug me nyuam asexually los ntawm tsuas yog rub lawv tus kheej mus rau hauv ob daim - ib lub taub hau thiab ib tug Tsov tus tw - uas ces mus rau tsim ob worms tshiab nyob rau hauv ib lub lis piam.

Yog li ntawd, yuav ua li cas Planarians yug me nyuam?

Hauv asexual kev yug me nyuam , cov planarian detaches nws tus Tsov tus tw kawg thiab txhua ib nrab regrows qhov poob qhov chaw los ntawm kev tsim dua tshiab, tso cai rau neoblasts (cov neeg laus qia hlwb) faib thiab sib txawv, yog li ua rau ob kab cab. Qee hom planaria tshwj xeeb yog asexual, whereas ib txhia ua tau yug me nyuam ob leeg deev thiab asexually.

Puas yog nematodes yug me nyuam los yog sib deev?

Reproductive System: Nematodes yug me nyuam feem ntau dhau los kev sib deev . Ib txhia nematodes ua tau yug me nyuam asexually los ntawm parthenogenesis. Lwm tus yog hermaphrodites thiab muaj ob qho tib si txiv neej thiab poj niam cev xeeb tub.

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