读知识>英语词典>natural selection翻译和用法

natural selection

英 [ˌnætʃrəl sɪˈlekʃn]

美 [ˌnætʃrəl sɪˈlekʃn]

n.  自然选择; 物竞天择

医学

牛津词典

    noun

    • 自然选择;物竞天择
      the process by which plants, animals, etc. that can adapt to their environment survive and reproduce, while the others disappear

      柯林斯词典

      • N-UNCOUNT (生物的)自然选择,物竞天择,适者生存
        Natural selectionis a process by which species of animals and plants that are best adapted to their environment survive and reproduce, while those that are less well adapted die out.
        1. Natural selection ensures only the fittest survive to pass their genes on to the next generation.
          自然选择确保只有最适应环境的物种得以存活下来,把基因传给下一代。

      英英释义

      noun

      双语例句

      • Natural selection ensures only the fittest survive to pass their genes on to the next generation.
        自然选择确保只有最适应环境的物种得以存活下来,把基因传给下一代。
      • It's Darwin's principle of natural selection in action.
        这是达尔文的自然选择原则的行动。
      • Whether speciation is achieved normally via genetic drift or natural selection is the subject of much ongoing discussion.
        究竟正常的物种形成是通过遗传漂变还是通过自然选择达到的,是现在正在进行热烈讨论的话题。
      • A major implication of Darwin and Wallace's theory of natural selection is that all life forms, living and extinct, are descended from a single common ancestor.
        达尔文和华莱士的物竞天择理论都蕴含一个主要的观点:即所有现存和已灭绝的生命形式都起源于同一个共同的祖先。
      • ANTIBIOTIC drugs are a well-known test of the idea of natural selection.
        抗生素是对自然选择学说一个十分知名的论证。
      • It's Darwinian, the law of natural selection.
        这是达尔文的自然选择规律。
      • His theory of natural selection is based on the principle of the survival of the fittest.
        他的自然选择理论就是基于适者生存的原则。
      • Natural selection tends to maintain a mutation rate for maximal evolvability.
        自然选择倾向于保持一个使可进化性最大化的基因突变率。
      • Mutation and speciation have usually been evolved responses to the environment and competition, with natural selection determining which new traits become widely disseminated.
        通常,突变和物种形成的进化,取决于环境和竞争来,哪些新特性普遍传播则取决于自然选择。
      • Again, differences between people and the opportunity for natural selection to take advantage of it have diminished.
        人与人之间的差异和利用差异进行自然选择的机会再一次失去。