Video: Qhov piv txwv sympatric speciation yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub hawthorn ya yog ib qho piv txwv ntawm sympatric speciation raws li qhov nyiam ntawm qhov chaw tso qe. Lwm tus piv txwv ntawm sympatric speciation nyob rau hauv cov tsiaj tau tshwm sim nrog orca whales nyob rau hauv lub hiav txwv Pacific. Muaj ob hom orcas uas nyob hauv tib cheeb tsam, tab sis lawv tsis sib cuam tshuam lossis ua phooj ywg nrog ib leeg.
Tsis tas li ntawd, qhov piv txwv ntawm speciation yog dab tsi?
Ib piv txwv ntawm speciation yog Galápagos finch. Qhov no hu ua allopatric kev tshwj xeeb . Muaj tsib hom kev tshwj xeeb : 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.
Ib sab saum toj no, ua li cas sympatric speciation tshwm sim? Sympatric speciation tshwm sim thaum cov pejxeem ntawm ib hom tsiaj uas sib koom tib qhov chaw nyob ua rau muaj kev sib cais ntawm ib leeg. Qhov no kev tshwj xeeb phenomenon feem ntau tshwm sim los ntawm polyploidy, nyob rau hauv uas ib tug xeeb leej xeeb ntxwv los yog pab pawg neeg ntawm cov xeeb leej xeeb ntxwv yuav raug tsim nrog ob zaug ntawm ib txwm tooj ntawm chromosomes.
Ib yam li ntawd ib tug yuav nug, dab tsi yog thiab muab piv txwv ntawm allopatric speciation thiab sympatric speciation?
Kev piav qhia: Allopatric speciation tshwm sim thaum thaj chaw teeb meem, zoo li tus dej, roob, lossis hav zoov, cais cov tswv cuab ntawm cov pej xeem. Cov piv txwv nrog cov hawks hais txog sympatric speciation , qhov twg tsis muaj geographic barrier nyob, tab sis kev tshwj xeeb tseem tuaj yeem tshwm sim vim lwm yam kev ntxhov siab.
Ob hom sympatric speciation yog dab tsi?
Muaj plaub hom ntawm kev tshwj xeeb : sympathic , allopatric, parapatric, thiab peripatric. Lwm yam peb hom ntawm kev tshwj xeeb koom nrog lub cev sib cais ntawm ob pejxeem ntawm tib hom, thaum sympatric speciation tsis.
Pom zoo:
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