Cov txheej txheem:

Dab tsi ua rau kev xaiv ntuj?
Dab tsi ua rau kev xaiv ntuj?

Video: Dab tsi ua rau kev xaiv ntuj?

Video: Dab tsi ua rau kev xaiv ntuj?
Video: yog hmoov dab tsi. Zoo Xyooj (cover) 2024, Kaum ib hlis
Anonim

Ntuj xaiv tshwm sim yog tias muaj plaub yam xwm txheej tau ntsib: kev yug me nyuam, kev yug me nyuam, kev hloov pauv ntawm lub cev yam ntxwv thiab kev hloov pauv ntawm cov xeeb ntxwv ntawm ib tus neeg.

Raws li txoj cai, 4 ntu ntawm kev xaiv ntuj yog dab tsi?

Darwin tus txheej txheem ntawm kev xaiv ntuj muaj plaub yam

  • Kev hloov pauv. Cov kab mob (hauv cov pej xeem) qhia txog tus kheej hloov pauv hauv qhov tsos thiab tus cwj pwm.
  • Keeb kwm. Qee tus cwj pwm tsis tu ncua los ntawm niam txiv mus rau cov xeeb ntxwv.
  • Kev loj hlob ntawm cov pejxeem.
  • Differential ciaj sia taus thiab yug me nyuam.

Ib tug kuj yuav nug, peb piv txwv ntawm kev xaiv ntuj yog dab tsi? Qee qhov piv txwv suav nrog mos lwj mus , tus npauj npaim, thiab peacock. Kab mob yog ib qho kev tshawb fawb yam thaum kawm evolution thiab adaptation vim tej colonies ntawm kab mob tuaj yeem tsim ntau tiam neeg hauv ib hnub, cia cov kws tshawb fawb pom qhov "ceev mus tom ntej" version ntawm evolution thiab kev xaiv ntuj.

Ua raws li qhov kev xav no, dab tsi yog qhov kev xaiv ntuj tsim?

Ntuj xaiv yog qhov sib txawv ntawm kev ciaj sia thiab kev tsim tawm ntawm tib neeg vim qhov sib txawv ntawm phenotype. Nws yog ib qho tseem ceeb mechanism ntawm evolution, qhov kev hloov ntawm cov cuab yeej cuab tam yam ntxwv ntawm ib tug pej xeem ntau tiam. Variation muaj nyob rau hauv tag nrho cov pejxeem ntawm cov kab mob.

Darwin 5 ntsiab lus yog dab tsi?

Darwin tus txoj kev xav ntawm evolution, kuj hu ua Darwinism , tuaj yeem muab faib ntxiv rau 5 qhov chaw: "evolution as such", common descent, gradualism, population speciation, and natural selection.

Pom zoo: