Cov txheej txheem:
Video: Dab tsi yog 3 hom speciation?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj tsib hom speciation : allopatric, peripatric, parapatric, thiab sympatric thiab dag. Allopatric kev tshwj xeeb (1) tshwm sim thaum ib hom sib cais ua ob pawg sib cais uas cais ntawm ib leeg.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog 3 kauj ruam ntawm speciation?
LUB MAGICAL ROAD RAU EVOLUTION
- Kauj Ruam 1: Sib cais. Speciation feem ntau pib thaum ib feem ntawm cov pej xeem sib cais los ntawm lwm yam ntawm lawv hom.
- Theem Ob: Kev Hloov Kho.
- Kauj Ruam 3: Kev rho menyuam tawm.
- Koj puas paub?
Tom qab, lo lus nug yog, yuav ua li cas speciation tshwm sim? Kev piav qhia: Qhov tshwj xeeb tshwm sim thaum ob los yog ntau tshaj cov pej xeem sib txawv heev uas lawv tsis interbreed nrog ib leeg. Allopatric kev tshwj xeeb yog thaum cov pej xeem sib cais thaj chaw thiab sib txawv nyob rau lub sijhawm vim yog kev xaiv ntuj, kev hloov pauv, thiab caj ces drift nyob rau hauv txhua tus pej xeem.
Parapatric speciation hauv biology yog dab tsi?
Hauv parapatric speciation , ob lub subpopulations ntawm ib hom evolve reproductive cais ntawm ib leeg thaum txuas ntxiv mus pauv cov noob. Parapatry yog thaj chaw faib tawm tawm tsam sympatry (ib cheeb tsam) thiab allopatry lossis peripatry (ob qhov xwm txheej zoo sib xws ntawm thaj chaw sib txawv).
Dab tsi yog speciation piav nrog piv txwv?
Rau piv txwv : Allopatric Cov kev tshwj xeeb tshwm sim thaum tib neeg tsiaj raug yuam kom sib cais ntawm ob thaj chaw raws li qhov kev hloov ntawm thaj chaw. Raws li qhov tshwm sim, muaj kev hloov pauv uas tshwm sim hauv cov neeg sib cais uas cuam tshuam rau lub peev xwm ntawm ob pab pawg kom rov tsim dua yog tias thiab thaum lawv rov pib dua.
Pom zoo:
Dab tsi yog qhov txawv ntawm daim ntawv qhia lub hom phiaj thiab daim ntawv qhia lub hom phiaj tshwj xeeb?
Qhov tseem ceeb hauv daim ntawv qhia dav dav yog nyob ntawm qhov chaw. Phab ntsa daim duab qhia chaw, feem ntau daim ntawv qhia pom nyob rau hauv atlases, thiab txoj kev maps yog tag nrho cov nyob rau hauv qeb no. Thematic maps, tseem hu ua daim ntawv qhia tshwj xeeb, qhia txog thaj chaw faib khoom ntawm ib lub ntsiab lus lossis qhov tshwm sim
Dab tsi yog qhov laj thawj tseem ceeb ntawm speciation?
Cov kws tshawb fawb xav tias qhov kev sib cais ntawm thaj chaw yog ib txoj hauv kev rau cov txheej txheem ntawm speciation pib: cov dej hloov pauv, cov roob nce siab, cov teb chaws drift, cov kab mob txav mus los, thiab dab tsi yog ib zaug cov pej xeem tsis tu ncua tau muab faib ua ob lossis ntau dua cov neeg me
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