Video: Thaum twg yog txoj kev xav ntawm cov neeg tiam neeg tau npaj tseg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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Yog li ntawd, leej twg tau npaj txoj kev xav ntawm lub neej tiam neeg?
Aristotle
Ib sab saum toj no, txoj kev xav dab tsi tau hloov txoj kev xav ntawm lub neej tiam? Abiogenesis , txoj kev xav hais tias lub neej hloov zuj zus los ntawm nonliving chemical systems, hloov spontaneous tiam raws li tus thawj txoj kev xav rau lub keeb kwm ntawm lub neej . Haldane thiab Oparin theorized tias "kua zaub" ntawm cov organic molecules ntawm lub ntiaj teb thaum ub yog lub hauv paus ntawm lub neej lub tsev thaiv.
Ua li no, thaum twg Aristotle tuaj nrog spontaneous tiam?
Txawm hais tias txoj kev xav ntawm spontaneous tiam (abiogenesis) tuaj yeem taug qab yam tsawg kawg rau lub tsev kawm ntawv Ionian (600 BC), nws yog Aristotle (384-322 B. C.) uas tau nthuav tawm cov lus sib cav ua tiav rau thiab cov lus qhia meej tshaj plaws ntawm txoj kev xav no.
Leej twg tau npaj txoj kev xav ntawm biogenesis?
Biogenesis yog cov kev xav tias tej yam muaj sia tsuas yog los ntawm lwm yam muaj sia xwb. Nws tau tsim nyob rau hauv 1858 los ntawm Rudolf Virchow raws li ib tug counter-hypothesis rau spontaneous tiam. Ua ntej Virchow, nws tau dav lees paub tias cov kab mob tsuas yog tshwm sim los ntawm qhov tshwm sim tshwm sim.
Pom zoo:
Dab tsi yog qhov txawv ntawm P tiam f1 tiam thiab f2 tiam?
P txhais tau hais tias niam txiv tiam thiab lawv tsuas yog cov nroj tsuag ntshiab xwb, F1 txhais tau tias thawj tiam thiab lawv yog tag nrho cov hybrids uas qhia qhov tseem ceeb, thiab F2 txhais tau tias tiam thib ob, uas yog cov xeeb ntxwv ntawm P. Yog hais tias ib tug neeg muaj ib tug tseem ceeb allele, nws yuav. ua yeeb yam
Dab tsi yog qhov kev xav ntawm kinetic txoj kev xav ntawm cov pa roj?
Cov qauv kinetic yooj yim tshaj plaws yog ua raws li cov kev xav tau tias: (1) cov pa roj yog tsim los ntawm ntau cov molecules zoo tib yam txav mus rau hauv cov lus qhia random, sib cais los ntawm qhov deb uas loj piv nrog lawv qhov loj; (2) cov molecules undergo zoo kawg nkaus elastic kev sib tsoo (tsis muaj zog poob) nrog rau ib leeg thiab nrog rau
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Leej twg tau npaj txoj kev xav ntawm cov kob biogeography?
Wilson Tsis tas li ntawd, leej twg tuaj nrog cov kob biogeography? E. O. Wilson Tsis tas li ntawd, dab tsi yog kwv yees los ntawm txoj kev xav ntawm cov kob biogeography? Wilson, coined lub Theory of Island Biogeography . Qhov no kev xav sim ua kwv yees tus naj npawb ntawm hom uas yuav muaj nyob rau ntawm qhov tsim tshiab kob .
Dab tsi yog lub hauv paus ntsiab lus ntawm txoj kev xav ntawm lub neej tiam neeg?
Txoj kev xav ntawm lub neej tiam neeg tau hais tias muaj sia nyob tuaj yeem tshwm sim los ntawm cov khoom tsis muaj sia nyob thiab cov txheej txheem zoo li no tau tshwm sim thiab tsis tu ncua. Piv txwv li, nws tau xav tias qee yam xws li fleas tuaj yeem tshwm sim los ntawm cov khoom tsis muaj tsiaj xws li hmoov av, lossis cov maggots tuaj yeem tshwm sim los ntawm cov nqaij tuag