Video: Coevolution piv txwv yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev sib hloov Txhais. Nyob rau hauv cov ntsiab lus ntawm evolutionary biology, kev sib koom tes hais txog evolution ntawm tsawg kawg yog ob hom, uas tshwm sim nyob rau hauv ib tug kev sib nrig sib dependent yam. Ib piv txwv yog cov kev sib koom tes ntawm flowering nroj tsuag thiab txuam pollinators (piv txwv li, muv, noog, thiab lwm yam kab).
Nyob rau hauv no hais txog, dab tsi yog coevolution nyob rau hauv biology?
Hauv biology , kev sib koom tes tshwm sim thaum ob lossis ntau hom reciprocally cuam tshuam rau ib leeg txoj kev hloov pauv los ntawm cov txheej txheem ntawm kev xaiv ntuj. Charles Darwin tau hais txog kev hloov pauv hloov pauv ntawm cov nroj tsuag paj thiab kab hauv On the Origin of Species (1859).
Tsis tas li ntawd, kev sib koom ua ke tshwm sim li cas? Lub sij hawm kev sib koom tes yog siv los piav txog cov xwm txheej uas ob (lossis ntau dua) hom reciprocally cuam tshuam rau ib leeg txoj kev hloov pauv. Kev sib hloov zoo li yuav tshwm sim thaum sib txawv hom muaj kev sib raug zoo ecological kev sib raug zoo nrog ib leeg. Cov kev sib raug zoo ntawm ecological muaj xws li: Predator/prey and parasite/host.
Tsuas yog li ntawd, yuav ua li cas mimicry yog ib qho piv txwv ntawm kev sib koom tes?
Kev sib hloov yog: Evolution nyob rau hauv ob los yog ntau tshaj evolutionary entities coj los ntawm reciprocal xaiv los ntawm cov chaw. Mimicry , rau piv txwv muaj peev xwm coevolutionary , tuaj yeem yog: parasite / host kev sib cuam tshuam (hauv Batesian kev ua yeeb yam ) los yog kev sib nrig sib pab (Müllerian kev ua yeeb yam ).
Coevolution yog dab tsi thiab vim li cas nws tseem ceeb?
Kev sib hloov yog lub ntsiab lus tseem ceeb ntawm kev sib cuag ntawm evolution thiab ecology, nyob rau hauv qhov kev nkag siab tias cov kab mob lawv tus kheej yuav tsum raug suav hais tias yog ib qho tseem ceeb ib feem ntawm ib puag ncig uas exerts selective pressures rau txhua hom.
Pom zoo:
Yam ua piv txwv piv txwv li cas?
Ib khub xaj yog ib khub ntawm tus lej hauv ib qho kev txiav txim. Piv txwv li, (1, 2) thiab (- 4, 12) raug txiav ua khub. Qhov kev txiav txim ntawm ob tus lej tseem ceeb: (1, 2) tsis sib npaug rau (2, 1) -- (1, 2) ≠ (2, 1)
Dab tsi yog qhov sib piv thiab piv txwv?
Inverse proportion. Inverse proportions tshwm sim thaum ib tus nqi nce thiab qhov txo qis. Piv txwv li, ntau tus neeg ua haujlwm ntawm txoj haujlwm yuav txo lub sijhawm los ua kom tiav cov haujlwm. Lawv yog inversely proportional
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb