Forelimbs zoo li cas?

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Forelimbs zoo li cas?
Forelimbs zoo li cas?

Video: Forelimbs zoo li cas?

Video: Forelimbs zoo li cas?
Video: Introduction to Limb Development 2024, Kaum ib hlis
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Lub forelimbs ntawm tag nrho cov tsiaj nyeg muaj tib lub pob txha qauv… Cov qauv zoo sib xws vim lawv hloov zuj zus mus ua ib yam haujlwm, tsis yog vim lawv tau txais los ntawm ib tug poj koob yawm txwv. Piv txwv li, cov tis ntawm puav thiab cov noog, pom hauv daim duab hauv qab no, zoo ib yam li sab nraud. Lawv kuj muaj tib txoj haujlwm.

Puas yog forelimbs homologous?

Tag nrho cov vertebrate forelimbs yog homologous, txhais tau tias lawv txhua tus hloov zuj zus los ntawm tib cov qauv. Piv txwv li, lub flipper ntawm ib tug vaub kib los yog ib tug ntses taub ntswg ntev, caj npab ntawm ib tug tib neeg, lub foreleg ntawm ib tug nees, thiab lub tis ntawm puav puav thiab noog yog qhov kawg homologous, txawm lub loj sib txawv ntawm lawv.

Puas yog forelimbs homologous lossis analogous?

Analogies yog qhov tshwm sim ntawm kev hloov pauv hloov pauv. Interestingly, txawm noog thiab tis tis yog analogous li tis, raws li forelimbs lawv yog homologous.

Dab tsi yog qhov zoo sib xws ntawm homologous thiab analogous qauv?

Cov yam ntxwv zoo sib xws tuaj yeem yog homologous lossis analogous. Homologous qauv qhia qhov zoo sib xws embryonic keeb kwm. Analogous lub cev muaj qhov ua haujlwm zoo sib xws. Piv txwv li, cov pob txha nyob rau hauv ib tug whale pem hauv ntej flipper yog homologous rau cov pob txha nyob rau hauv tib neeg caj npab.

Yuav ua li cas qhov zoo sib xws hauv cov pob txha ntawm tib neeg cov dev whales thiab noog txhawb txoj kev xav ntawm evolution?

Cov no hu ua homologous structures. Txij li cov qauv no zoo sib xws, lawv qhia txog kev sib raug zoo evolutionary thiab ib tug poj koob yawm txwv ntawm hom uas muaj lawv. … Thaum soj ntsuam kom ze, lub forelimbs ntawm tib neeg, whales, dev, thiab puav tag nrho yog zoo ib yam hauv cov qauv

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