2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Vim tias txhua tus qwj tuaj yeem tsim cov phev thiab qe, lawv muaj ntau dua ib qho kev xaiv thaum muaj menyuam - lawv tuaj yeem nrhiav tau tus khub, lossis lawv tuaj yeem fertilize lawv tus kheej. … Me nyuam qwj uas tsim los ntawm nws tus kheej fertilization muaj tsawg dua txoj kev ciaj sia. Auld hais tias "Kev ua qoob rau tus kheej yog kev siv zog kawg," said Auld.
Qwj nws tus kheej fertilize ntau npaum li cas?
Thaum cov xwm txheej zoo (huab cua sov, av noo), qwj tuaj yeem rov tsim dua li niaj zaus ib hlis ib zaug. Garden snails 'reproduction yog ceev heev uas qhov nruab nrab qwj tuaj yeem tso tau 86 lub qe rau ib lub voj voog, thiab nrog rau qhov nruab nrab ntawm tsib lub voj voog kev loj hlob ib xyoos, txhua tus qwj tuaj yeem tso tau 430 qe hauv ib xyoos.
Qav tuaj yeem nteg qe yam tsis muaj kev sib tw?
Nws nyob ntawm hom. Lwm tus nyiam fertilize nws tus kheej, yog li lawv tsis xav tau lwm tus los nteg qe. Tom qab fertilization, lub qe mus dhau ib txheej txheem ntawm kev loj hlob nyob rau hauv lub qwj, kom txog thaum lawv npaj txhij xa.
Aquarium kwj tuaj yeem tsim nws tus kheej?
Muaj txog 5,000 hom ntses dej qab zib sib txawv, tab sis lawv lub neej zoo sib xws. … Ntau hom ntses dej qab zib yog hermaphrodites, txhais tau hais tias lawv muaj ob qho tib si txiv neej thiab poj niam cev nqaij daim tawv, thiab tuaj yeem tsim tau tus kheej zoo li qub, txhais tau tias tsis tas yuav tsum tau ob lub qwj.
snails puas tuaj yeem yug me nyuam?
Snails yog mollusks ntawm chav kawm Gastropoda, chav kawm loj thiab ntau yam sib txawv. … Qee cov qwjyog hermaphrodites, ib co reproduces kev sib deev thiab qee lub pas dej dej tshiab reproduce asexually. Ob peb hom, suav nrog New Zealand av nkos (Potamopyrgus antipodarum), tuaj yeem tsim tawm ob qho tib si sib deev thiab sib deev.
Pom zoo:
Lub tswv yim ntawm kev ua tus kheej ntawm tus kheej hauv kev saib xyuas neeg laus yog dab tsi?
Abstract. Kev saib xyuas tus kheej yog ib qho haujlwm ntawm cov neeg paub tab uas tau tsim lawv lub peev xwm los saib xyuas lawv tus kheej. Cov tib neeg tuaj yeem xaiv los ua kom lawv lub peev xwm saib xyuas tus kheej hauv kev saib xyuas tus kheej kom tswj, kho, lossis txhim kho kev noj qab haus huv thiab kev noj qab haus huv.
Yuav ua li cas sau tus neeg tua tus kheej ntsuas tus kheej?
Ua Ntej Koj Pib Sau Koj Tus Kheej Kev Ntsuas Tus Kheej 1 Paub seb qhov kev ntsuas tus kheej yuav siv li cas. … 2 Sau cov npe ntawm koj qhov kev ua tiav. … 3 Sau cov tshuaj ntsuam xyuas yog tias koj ua tau. … 4 Sau cov npe ntawm koj qhov kev tawm tsam.
Puas yog tawv nqaij tawv nqaij tawv nqaij khawb yooj yim?
tawv tawv, zoo li calfskin, tuaj yeem nkag siab rau khawbtab sis tau yooj yim rov qab los ntawm tus kws tshwj xeeb lub hnab. Puas yog tawv nqaij tawv tawv tawv tawv? Feem ntau hais lus, calf tawv yog ruaj khov, tshwj xeeb tshaj yog rau nws qhov hnyav thiab tuab.
Puas tau cog qoob loo nws tus kheej fertilize?
pea nroj tsuag kuj feem ntau ua rau nws tus kheej fertilize, txhais tau hais tias tib tsob nroj ua rau cov phev thiab qe uas tuaj ua ke hauv fertilization. … Qhov no yog ua los ntawm kev hloov pollen los ntawm anthers (txiv neej qhov chaw) ntawm ib tug txiv neej cog ntawm ib tug ntau yam mus rau carpel (poj niam ib feem) ntawm ib tug paub tab cog ntawm ntau yam.
Yuav ua li cas cov tsiaj nyaum nws tus kheej fertilize?
Txawm li cas los xij, kis ntawm tus kheej-fertilization tau tshaj tawm hauv cov kab hauv av; Domınguez et al. (2003) tau sib tham tias Eisenia andrei cov tib neeg khoov lawv tus kheej, tso cai rau lawv cov spermathecal pores tiv tauj thaj tsam ventral ntawm lawv cov clitellum.
