speciation

常見例句

雙語例句

• Microevolution looks at changes within species overtime — changes that may be preludes to speciation, the origin of newspecies.
  物種的微觀進(jìn)化隨時(shí)都在發(fā)生——變化可能導(dǎo)致物種形成，這就是新物種的起源。
• Some researchers have argued that speciation rates, both terrestrial and marine, could be much higher in the tropics, making them a "cradle" of biodiversity.
  一些專家認(rèn)爲(wèi)，在熱帶地區(qū)的陸地和海域，物種形成的機(jī)率更高，這樣就使熱帶地區(qū)成爲(wèi)了生物多樣性的搖籃。
• Researchers usually link speciation to some sort of physical barrier, such as a river or mountain, which divides populations and causes them to evolve independently.
  研究人員通常把物種形成與某種物理屏障相聯(lián)系，如河流或山脈，這種屏障分隔種群，使它們獨(dú)立進(jìn)化。

權(quán)威例句

• The dominant theory of speciation is that it results from a slow accumulation of genetic mutations.
  ECONOMIST: Genes are not all there is to heredity
• Boeke says that when more of the yeast genome is synthesized, researchers will be able to use the system to study evolution and speciation.
  FORBES: Yeast Goes Synthetic
• So the epigenetic hypothesis of speciation has an edge.
  ECONOMIST: Genes are not all there is to heredity
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