2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Paedomorphosis tau tshwm sim thaum yug me nyuam pom nyob rau hauv dab tsi yog poj koob yawm txwv ib theem morphological menyuam yaus. Qhov no tuaj yeem yog qhov tshwm sim ntawm neotenye lossis progenesis. … Tus Mexican axolotl rov qab yog ib qho piv txwv nto moo ntawm paedomorphosis, khaws cia nyob rau hauv kev loj hlob ntawm feathery gills uas muaj feem xyuam rau cov tsiaj poob thaum yau.
Dab tsi yog qhov tseem ceeb ntawm paedomorphosis?
paedomorphosis Kev hloov pauv hloov pauv uas ua rau khaws cia cov menyuam yaus hauv lub neej laus. Nws tuaj yeem yog qhov tshwm sim ntawm neotenye lossis progenesis. Nws tso cai rau 'kev khiav tawm' los ntawm kev tshwj xeeb, thiab tau raug hu mus rau account rau lub hauv paus chiv keeb ntawm ntau taxa, los ntawm subspecies mus rau phyla.
Lub luag haujlwm ntawm paedomorphosis hauv chordate evolution yog dab tsi?
Paedomorphosis tau xav tias tau tshwm sim hauv kev hloov pauv ntawm cov chordates siab dua los ntawm kev ua luam dej dawb-dawb tunicates, uas metamorphosis nws thiaj li ploj mus thiab kev sib deev kev loj hlob sai txog thaum larval daim ntawv muaj peev xwm ntawm kev yug me nyuam.
Dab tsi yog qhov tseem ceeb ntawm paedomorphosis hauv kev hloov pauv ntawm tetrapods?
Paedomorphosis enables qee hom salamander nce hav zoov nroj tsuag; lawv cov ko taw heev-webbed sawv cev rau paedomorphic evolution nyob rau hauv uas txoj kev loj hlob ntawm tus lej raug txo qis heev, ua rau ko taw ua nplaum nplaum.
Vim li cas qee cov salamanders pom paedomorphosis?
Abstract. Paedomorphosis yog lwm txheej txheem raumetamorphosis nyob rau hauv uas cov neeg laus khaws cov larval zoo ntawm cov neeg laus. Nws yog nquag nyob rau hauv newts thiab salamanders, qhov twg larvae ncav cuag kev sib deev maturity tsis poob lawv gills. … Nws yog qhov tseem ceeb los txheeb xyuas cov paedomorphs piv rau overwintering larvae.
Pom zoo:
Puas yog rov tshwm sim dua lossis rov tshwm sim dua?
Reoccur thiab recur yog verbs uas qhia ib lo lus hauv paus. Thaum lawv nyob ze heev ntawm lub ntsiab lus, lawv tsis zoo ib yam. Tej yam uas yog rov tshwm sim dua thiab dhau mus, tej zaum nyob rau ib ntus. Hauv qhov sib piv, ib yam dab tsi uas rov tshwm sim tsuas yog tshwm sim dua tab sis tsis tas yuav rov ua dua.
Rau qhov tshwm sim tshwm sim?
Cov tshuaj tiv thaiv tus kheej yogtawm tsam uas nyiam tsim cov khoom ntawm cov xwm txheej uas tshwm sim. … Qhov kev sib xyaw ua ke ntawm kev txo qis ntawm lub zog thiab qhov nce hauv entropy txhais tau hais tias cov tshuaj tiv thaiv combustion tshwm sim tsis tu ncua.
Thaum twg pfizer tshwm sim tshwm sim?
Qee yam tshwm sim tshwm sim txoj cai tom qab koj txhaj tshuaj, zoo li mob me me hauv koj txhais caj npab. Lwm tus yuav siv sij hawm ntau teev los txhim kho. Nco ntsoov tias nrog ob koob tshuaj tiv thaiv zoo li Pfizer-BioNTech thiab Moderna, koj tuaj yeem pom muaj kev phiv ntau dua tom qab txhaj tshuaj thib ob.
Yuav tshwm sim lossis tshwm sim?
Peb hom tshwm sim yog arise, sawv, arisen. Nws yog siv hauv cov ntsiab lus tseem ceeb: Ib lub sijhawm tshwm sim thiab nws txiav txim siab los ua txoj haujlwm hauv Brussels. Ib qho teeb meem tshwm sim nrog kuv daim ntawv hla tebchaws. Thaum siv tshwm sim lossis tshwm sim?
Yuav ua li cas txiav txim siab seb qhov kev tshwm sim yog tshwm sim los yog tsis ua raws li txoj cai?
Kev sib xyaw ua lej ntawm kev hloov pauv enthalpy thiab hloov pauv hloov pauv tso cai rau kev hloov pauv ntawm lub zog dawb los suav. A tawm tsam nrog tus nqi tsis zoo rau ΔG tso tawm lub zog dawb thiab yog li nws tus kheej. Cov tshuaj tiv thaiv nrog qhov zoo ΔG yog tsis ua raws li kev xav thiab yuav tsis nyiam cov khoom.
