2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kev sib deev tshwm sim hauv ob tsob nroj thiab tsiaj. Ntawm cov nroj tsuag nws yog siv feem ntau notably los ntawm flowering nroj tsuag. Cov paj txiv ntoo ntawm paj muaj cov phev. Lub vase zoo li tus poj niam cev xeeb tub nyob rau hauv lub hauv paus ntawm lub paj, los yog pistil, muaj cov qe.
Kev yug dua tshiab nyob qhov twg hauv tib neeg?
Tib neeg poj niam
Kev fertilization feem ntau tshwm sim hauv oviducts, tab sis tuaj yeem tshwm sim hauv tsev menyuam nws tus kheej. Lub zygote ces yuav implanted nyob rau hauv lub hauv ob sab phlu ntawm lub tsev menyuam, qhov twg nws pib cov txheej txheem ntawm embryogenesis thiab morphogenesis.
Kev yug me nyuam nyob qhov twg hauv cov nroj tsuag?
Paj ntoo rov tsim dua kev sib deev los ntawm txoj kev hu ua pollination. Cov paj muaj cov txiv neej pw hauv nruab nrog cev hu ua stamens thiab poj niam txiv neej lub cev hu ua pistils. Lub anther yog ib feem ntawm cov stamens uas muaj paj ntoos. Cov paj ntoos no yuav tsum tau tsiv mus rau ib feem ntawm cov kab mob hu ua stigma.
Yuav ua li cas rov tshwm sim?
Muaj ob hom kev yug me nyuam: kev sib deev thiab kev sib deev. Nyob rau hauv asexual reproduction, ib tug kab mob muaj peev xwm yug me nyuam yam tsis muaj kev koom tes ntawm lwm yam kab mob. Kev yug menyuam tsis muaj menyuam tsis txwv rau cov kabmob ib leeg. Lub cloning ntawm ib tug kab mob yog ib daim ntawv ntawm asexual reproduction.
Kev yug me nyuam nyob qhov twg?
Lub zes qe menyuam tsim cov qe qe, hu ua ova lossis oocytes. Cov oocytes yog thaum ntawdthauj mus rau lub raj mis uas muaj fertilization los ntawm cov phev. Lub qe fertilized ces tsiv mus rau uterus, qhov chaw uterine hauv ob sab phlu tau thickened nyob rau hauv cov lus teb rau cov tshuaj hormones ib txwm ntawm lub qe menyuam.
Pom zoo:
Qhov twg yog tus tshiab nkauj tshiab lossis tshiab nkauj tshiab?
Ntxhais nkauj tshiab yog tus neeg nyuam qhuav sib yuav. Yog tias koj nyuam qhuav sib yuav tag kis no, koj thiab koj tus txij nkawm tshiab yog tus tshiab. Zoo siab! Qee tus neeg yuav xav txog koj ib tug tshiab nkauj nraug ntau xyoo tom qab lub tshoob tiag.
Kev tsis ncaj ncees nyob qhov twg yog qhov hem rau kev ncaj ncees nyob txhua qhov chaw?
Martin Luther King tau hais tias: “Kev tsis ncaj ncees nyob txhua qhov chaw yog kev hem thawj rau kev ncaj ncees nyob txhua qhov chaw. Peb raug ntes nyob rau hauv ib tug inescapable network ntawm kev sib nrig sib pab, khi nyob rau hauv ib lub tsoos tsho ntawm txoj hmoo.
Qhov twg yog qhov kev txiav txim siab rau kev tsis lees paub thiab rau kev ua kom muaj kev tawm tsam ntawm kev tawm tsam?
Kev qhuab ntuas tau siv los ntawm cov thawj coj loj hauv cov tub rog Romanrau txim rau cov koom haum lossis pab pawg loj ua txhaum cai, xws li kev ua phem, kev tawm tsam, kev tawm tsam, thiab kev tsis ncaj ncees, thiab rau lub pacification ntawm rebellious legions.
Qhov twg yog hais txog kev rov siv dua thiab rov ua dua tshiab?
Recycling txhais tau tias tig ib yam khoom rau hauv cov ntaub ntawv raw uas tuaj yeem siv dua, feem ntau yog rau cov khoom tshiab. Qhov no yog ib txoj kev siv zog. Reusing hais txog kev siv ib yam khoom raws li nws tsis muaj kev kho mob. Qhov no txo cov pa phem thiab pov tseg, yog li ua rau nws muaj kev ruaj ntseg dua.
Ntawm kev tsis ncaj ncees nyob qhov twg yog kev hem thawj rau kev ncaj ncees nyob txhua qhov chaw?
Martin Luther King tau hais tias: “Kev tsis ncaj ncees nyob txhua qhov chaw yog kev hem thawj rau kev ncaj ncees txhua qhov chaw. Peb raug ntes nyob rau hauv ib tug inescapable network ntawm kev sib nrig sib pab, khi nyob rau hauv ib lub tsoos tsho ntawm txoj hmoo.
