Cross Fertilization - Pollen grains yog pauv los ntawm ib paj 'anther mus rau lwm tus stigma. Qhov no tshwm sim thaum ob lub paj ntawm cov nroj tsuag sib txawv. Thiab nws tshwm sim ntau zaus thaum paj nrog ntau haiv neeg keeb kwm tuaj ua ke.
Kev sib kis tshwm sim li cas?
Nyob rau hauv cov nroj tsuag siab dua, hla-fertilization tiav ntawm cross-pollination, thaum paj ntoos nplej (uas ua rau phev) hloov ntawm lub khob los yog paj ntawm ib tsob ntoo mus rau qe-cov kabmob cones los yog paj ntawm lwm tus. … Internal fertilization kuj tshwm sim ntawm ib co ntses thiab lwm yam dej yug me nyuam.
Kev sib tw yog dab tsi?
cross-fertilization in British English
noun. fertilization los ntawm kev sib xyaw ntawm txiv neej thiab poj niam gametes los ntawm ntau tus neeg ntawm tib hom. Sib piv tus kheej fertilization.
piv txwv piv txwv li pollination yog dab tsi?
Kev hloov paj ntoos los ntawm ib lub paj ntawm ib lub paj ntawm ib tsob ntoo mus rau lub qia ntawm ib lub paj ntawm lwm cov nroj tsuag ntawm tib hom. Thaum ib tug muv coj paj ntoos los ntawm ib tsob ntoo thiab hloov mus rau lwm tus, qhov no yog ib qho piv txwv ntawm cross-pollination. …
Yuav ua li cas yog cross-fertilization hauv earthworm?
YEarthworms feem ntau suav hais tias yog hla kev fertilization
hermaphrodites (piv txwv li, siv kev sib txuas sib txuas, hloov pauv, thiab tau txais cov phev hauv tib copu-lation). … Cov phev raug thauj los ntawm lubtxiv neej pores rau spermatheca.
