Video: Charles Darwin pom kev hloov pauv li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Charles Darwin hloov txoj kev uas tib neeg saib tej yam muaj sia. Darwin tus Kev xav ntawm Evolution los ntawm Natural Selection ties ua ke tag nrho cov kev tshawb fawb ntawm lub neej thiab piav qhia qhov chaw muaj sia nyob los ntawm thiab lawv hloov mus li cas. Tsuas yog qee cov tswv cuab ntawm cov tsiaj yug me nyuam, los ntawm kev xaiv ntuj, thiab dhau ntawm lawv cov yam ntxwv.
Ib yam li ntawd, nws tau nug, thaum twg Charles Darwin nrhiav tau evolution?
1859
Ib yam li ntawd, Darwin txoj kev xav ntawm evolution cov ntsiab lus yog dab tsi? Charles Darwin txoj kev xav ntawm evolution hais tias evolution tshwm sim los ntawm kev xaiv ntuj. Cov tib neeg nyob rau hauv ib hom kev sib txawv ntawm lub cev yam ntxwv. Raws li qhov tshwm sim, cov tib neeg feem ntau haum rau lawv ib puag ncig muaj sia nyob thiab, muab sijhawm txaus, hom yuav maj mam evolve.
Ib sab saum toj, dab tsi Darwin tsis paub txog evolution?
Rogers taw qhia qhov ntawd Darwin tsis paub hais txog noob caj noob ces, continental drift los yog lub hnub nyoog ntawm lub ntiaj teb. Nws yeej tsis tau pom ib hom kev hloov pauv. Nws tuaj yeem tsis lees paub Darwin tus kev xav. Tab sis hloov, peb muaj 150 xyoo ntawm cov pov thawj, tag nrho cov uas txhawb nws txoj kev xav.
Leej twg yog leej txiv ntawm evolution?
Charles Darwin's
Pom zoo:
Vim li cas cov hnub qub dhau los ntawm kev hloov pauv hloov pauv?
Stellar evolution yog tus txheej txheem uas lub hnub qub hloov pauv nyob rau lub sijhawm. Cov hnub qub uas muaj tsawg kawg yog ib nrab ntawm lub hnub tuaj yeem pib tsim lub zog los ntawm kev sib xyaw ntawm helium ntawm lawv cov tub ntxhais, thaum lub hnub qub ntau dua tuaj yeem sib xyaw cov ntsiab lus hnyav dua raws li cov khoom sib xyaw ua ke
Vim li cas tom qab kev hloov pauv kev hloov pauv tseem ceeb?
Kev hloov pauv tom qab kev txhais lus (PTMs) xws li glycosylation thiab phosphorylation ua lub luag haujlwm tseem ceeb ntawm kev ua haujlwm ntawm hemostatic proteins thiab tseem ceeb heev hauv kev teeb tsa kab mob. Xws li theem nrab hloov pauv rau cov proteins hemostatic muaj ntau yam cuam tshuam rau lawv lub peev xwm los cuam tshuam nrog lwm cov proteins
Dab tsi yog qhov txawv ntawm ib puag ncig kev hloov pauv thiab kev hloov pauv qub txeeg qub teg?
Qhov sib txawv ntawm cov yam ntxwv ntawm cov tib neeg ntawm tib hom yog hu ua variation. Qhov no yog inherited variation. Qee qhov kev hloov pauv yog qhov tshwm sim ntawm qhov sib txawv ntawm ib puag ncig, lossis ib tus neeg ua dab tsi. Qhov no yog hu ua environmental variation
Dab tsi tsim cov roj siab thiab nws hloov pauv li cas nrog kev hloov pauv hauv kinetic zog?
Gas siab yog tshwm sim los ntawm kev sib tsoo ntawm cov khoom siv roj nrog rau sab hauv ntawm lub thawv thaum lawv sib tsoo nrog thiab tawm dag zog rau ntawm phab ntsa ntim. Tom qab ntawd cov roj yog cua sov. Raws li qhov kub ntawm cov roj nce, cov khoom tau nce lub zog kinetic thiab lawv cov nrawm nrawm
Thaum ib qho kev sib cais ua rau muaj kev hloov pauv hloov pauv ntawm lub ntiaj teb nce ntxiv?
Txij li thaum lub kaw lus raug cais tawm, tsis muaj cua sov tuaj yeem khiav tawm (tus txheej txheem yog li adiabatic), yog li thaum lub zog ntws tawm hauv lub cev, qhov entropy ntawm qhov system nce, piv txwv li Δ Ssys> 0. Yog li ntawd, lub entropy ntawm lub system yuav tsum tau nce rau ib tug spontaneous txheej txheem nyob rau hauv no cais system