Video: Puas yog Darwin thawj zaug los nrog evolution?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nyob rau hauv thaum ntxov 19th caug xyoo Jean-Baptiste Lamarck (1744-1829) tau npaj nws txoj kev xav ntawm kev hloov ntawm hom, ua ntej tag nrho tsim txoj kev xav ntawm evolution . Xyoo 1858 Charles Darwin thiab Alfred Russel Wallace tau luam tawm ib qho tshiab evolutionary txoj kev xav, piav qhia meej hauv Darwin tus Nyob rau hauv Keeb Kwm ntawm Hom (1859).
Xav txog qhov no, Charles Darwin tau ua li cas los ntawm evolution?
Ntuj xaiv : Charles Darwin & Alfred Russel Wallace. Kev mus ntsib Galapagos Islands hauv 1835 tau pab Darwin tsim nws lub tswv yim rau natural xaiv . Nws pom ntau hom finch hloov mus rau qhov sib txawv ib puag ncig niches. Cov finches kuj sib txawv ntawm cov kab noj hniav, cov khoom noj, thiab cov khoom noj li cas.
vim li cas Charles Darwin thiaj suav tias yog leej txiv ntawm evolution? ' Darwin Hnub' Yuav Ua Kev Zoo Siab Leej Txiv ntawm Evolution . Nov yog ib daim duab kawg uas tau coj los ntawm Charles Darwin , leej twg tsim txoj kev xav ntawm evolution yog li kev hloov pauv hauv hom yog tsav, dhau sijhawm, los ntawm kev xaiv ntuj thiab kev sib deev.
Yog li ntawd, thaum twg Darwin tuaj nrog txoj kev xav ntawm evolution?
1859, 4 lub hauv paus ntsiab lus ntawm evolution yog dab tsi?
Muaj plaub txoj cai ntawm kev ua haujlwm hauv evolution -variation, qub txeeg qub teg, xaiv thiab sijhawm. Cov no yog suav tias yog cov khoom ntawm cov evolutionary mechanism ntawm natural xaiv.
Pom zoo:
Kev tshem tawm thawj zaug yog dab tsi?
Lus Txhais Thawj qhov kev txiav txim tshem tawm kinetics: 'Kev tshem tawm ib feem tsis tu ncua ntawm ib lub sijhawm ntawm cov tshuaj muaj nyob hauv lub cev. Kev tshem tawm yog proportional rau cov tshuaj concentration.'
Leej twg thawj zaug tham txog evolution ntawm lub neej?
Darwin Thiab cov lus nug yog, dab tsi yog keeb kwm thiab evolution ntawm lub neej? Yuav ua li cas cov kab mob primitive hloov zuj zus mus rau hauv cov ntaub ntawv tshiab uas ua rau lub evolution ntawm ntau yam kab mob hauv ntiaj teb.
Puas yog cov cawv thawj zaug ua rau HCl?
Tertiary alcohols teb sai sai nrog cov concentrated hydrochloric acid, tab sis rau thawj lossis theem nrab cawv cov tshuaj tiv thaiv qeeb heev rau cov tshuaj tiv thaiv tseem ceeb heev. Ib qho dej cawv tertiary reacts yog tias nws yog shaken nrog concentrated hydrochloric acid nyob rau hauv chav tsev kub
Thaum lub sij hawm geological twg puas tau cov kab mob thawj zaug tshwm sim hauv ntiaj teb?
Nyob ze rau qhov kawg ntawm lub sijhawm no, kwv yees li 2.7 txog 2.9 billion xyoo dhau los, raws li Blank, stromatolites, cov kab mob ntawm cov kab mob uas siv photosynthesis los tsim lub zog yam tsis muaj oxygen, thawj zaug tshwm sim
Qhov twg tuaj thawj evolution lom los yog tshuaj evolution?
Txhua yam ntawm lub neej yog theorized kom tau hloov zuj zus los ntawm tus thawj prokaryotes, tej zaum 3.5-4.0 billion xyoo dhau los. Cov tshuaj thiab lub cev tej yam kev mob ntawm lub ntiaj teb primitive yog invoked los piav txog lub hauv paus chiv keeb ntawm lub neej, uas yog preceded los ntawm tshuaj evolution ntawm cov organic tshuaj