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词汇 punctuated equilibrium
释义

Definition of punctuated equilibrium in English:

punctuated equilibrium

noun
mass nounBiology
  • The hypothesis that evolutionary development is marked by isolated episodes of rapid speciation between long periods of little or no change.

    〔生〕点断性平衡(说),断续性平衡(说)(认为物种进化过程中,每隔一段较长期相对稳定就会发生短期的急剧变化的假设)

    Example sentencesExamples
    • His best-known contribution to evolutionary biology was the theory of punctuated equilibrium that he developed with his colleague Niles Eldridge.
    • We performed the analysis assuming two evolutionary models: Brownian motion and punctuated equilibrium or speciation.
    • Their views are commonly known as the theory of punctuated equilibrium and contrasted with evolutionary gradualism.
    • Gould and Eldredge pointed out that the fossil record was one of millions of years of stasis, punctuated by relatively brief periods of rapid change - hence punctuated equilibrium.
    • I didn't mention punctuated equilibrium or allopatric speciation either, because it isn't relevant to the matter at hand.

Definition of punctuated equilibrium in US English:

punctuated equilibrium

noun
Biology
  • The hypothesis that evolutionary development is marked by isolated episodes of rapid speciation between long periods of little or no change.

    〔生〕点断性平衡(说),断续性平衡(说)(认为物种进化过程中,每隔一段较长期相对稳定就会发生短期的急剧变化的假设)

    Example sentencesExamples
    • His best-known contribution to evolutionary biology was the theory of punctuated equilibrium that he developed with his colleague Niles Eldridge.
    • Their views are commonly known as the theory of punctuated equilibrium and contrasted with evolutionary gradualism.
    • We performed the analysis assuming two evolutionary models: Brownian motion and punctuated equilibrium or speciation.
    • Gould and Eldredge pointed out that the fossil record was one of millions of years of stasis, punctuated by relatively brief periods of rapid change - hence punctuated equilibrium.
    • I didn't mention punctuated equilibrium or allopatric speciation either, because it isn't relevant to the matter at hand.
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