2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ib tug pejxeem ntawm finches ntawm Galapagos tau raug tshawb pom nyob rau hauv tus txheej txheem ntawm kev ua ib hom tshiab. Nov yog thawj qhov piv txwv ntawm speciation uas cov kws tshawb fawb tau tuaj yeem soj ntsuam ncaj qha hauv thaj teb.
Puas muaj pov thawj?
Cov kws tshawb fawb tau pom ntau cov pov thawj uas zoo ib yam nrog allopatric speciation yog ib txoj hauv kev uas hom tshiab tsim: Geographic qauv: Yog tias allopatric speciation tshwm sim, peb tau kwv yees tias cov pejxeem ntawm tib hom nyob rau thaj chaw sib txawv yuav txawv ntawm caj ces.
tib neeg puas tuaj yeem pom qhov xwm txheej tshwm sim?
Rau ntau tus kws tshawb fawb txog biologists, qhov no txhais tau hais tias qhov tshwj xeeb tshwm sim maj mam uas nws nyuaj rau kev soj ntsuam ntawm tib neeg lub sijhawm - uas peb yuav tsum tau taug qab cov pej xeem rau ntau txhiab xyoo lossis ntau dua kom pom nws faib ua ob hom. Txawm li cas los xij, kev tshawb fawb tshiab qhia tias qhov tshwj xeeb yuav yooj yim rau kev soj ntsuam dua li peb xav.
Koj paub li cas thaum speciation tshwm sim?
Rau qhov tshwj xeeb tshwm sim, ob tus neeg tshiab yuav tsum tau tsim los ntawm ib tus tib neeg qub, thiab lawv yuav tsum hloov zuj zus mus li qhov ua tsis tau rau cov tib neeg los ntawm ob tus neeg tshiab sib pab.
piv txwv ntawm speciation yog dab tsi?
Speciation is how a new kind of plant or animal species is created. … Ib qho piv txwv ntawm speciation yog the Galápagos finch. Ntau hom ntawm cov nonoog nyob ntawm cov Islands tuaj sib txawv hauv Galápagos archipelago, nyob hauv dej hiav txwv Pacific tawm ntawm South America. Cov finches raug cais ntawm ib leeg los ntawm dej hiav txwv.
Pom zoo:
Kuv yuav tsum txhawj xeeb txog qhov tsis tshwj xeeb t yoj abnormality?
Keeb Kwm: Tsis tshwj xeeb ST thiab T yoj abnormalities (NSSTTA) ntawm so ECGs cuam tshuam nrog nce mob plawv, thiab qhia txog qhov xwm txheej zoo sib xws rau cov xwm txheej pheej hmoo, xws li dyslipidemia, ntshav siab, thiab ntshav qab zib mellitus (DM).
Puas yog phagocytes tshwj xeeb lossis tsis tshwj xeeb?
Enzymes pom hauv lub cell ces zom cov kab mob txhawm rau txhawm rau rhuav tshem nws. Raws li phagocytes ua li no rau tag nrho cov kab mob uas lawv ntsib, lawv hu ua tsis tshwj xeeb. Puas yog phagocytes ib feem ntawm cov tshuaj tiv thaiv kab mob tshwj xeeb lossis tsis tshwj xeeb?
Puas yog meristems tshwj xeeb lossis tsis tshwj xeeb?
Meristems yog thaj chaw ntawm cov hlwb tsis tshwj xeeb hauv cov nroj tsuag uas muaj peev xwm faib cov cell. Meristems ua rau cov hlwb tsis tshwj xeeb uas muaj peev xwm dhau los ua ib hom cell tshwj xeeb. Puas yog cov ntaub so ntswg meristematic tshwj xeeb?
Puas yog tshwj xeeb thiab tshwj xeeb?
Raws li lub npe qhov txawv ntawm kev tshwj xeeb thiab kev tshwj xeeb. yog tias kev tshwj xeeb yog thaum tshwj xeeb yog txheej txheem tshwj xeeb. Qhov twg yog Qhov Tshwj Xeeb lossis Tshwj Xeeb? "Specialisation" thiab "
Vim li cas cov duab peb sab tshwj xeeb tshwj xeeb?
Kev paub txog kev sib raug zoo ntawm cov ces kaum lossis qhov sib piv ntawm ob sab ntawm cov duab peb sab tshwj xeeb tso cai rau ib tus kom sai sai suav ntau qhov ntev hauv cov teeb meem geometric yam tsis muajsiv rau ntau txoj hauv kev. Puas yog daim duab peb sab tshwj xeeb?
