natural selection
英 [ˌnætʃrəl sɪˈlekʃn]
美 [ˌnætʃrəl sɪˈlekʃn]
n. 自然选择; 物竞天择
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.- 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。
- Natural selection ensures only the fittest survive to pass their genes on to the next generation.
英英释义
noun
- a natural process resulting in the evolution of organisms best adapted to the environment
双语例句
- A theory of organic evolution claiming that new species arise and are perpetuated by natural selection.
主张新品种在自然中物竞天择的有机进化论。 - Darwin thinks that natural selection is the chief factor in the development of species.
达尔文认为自然淘汰是物种发展中的主要因素。 - 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。 - Living creature adapting to its environment is one of natural selection's results.
生物对环境的适应，是自然选择的结果之一。 - Natural selection hardly works among the rich and the poor.
自然选择在穷人和富人之间几乎不起作用。 - 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。 - In this case, natural selection would tend to add to the stature of the plant.
在此种情况下，自然选择就有增加植物高度的倾向。 - I am convinced that natural selection has been the main but not the exclusive means of modification.
我确信自然选择是主要的但不是唯一的手段。 - Genomic studies of natural variation in model organisms provide a bridge between molecular analyses of gene function and evolutionary investigations of adaptation and natural selection.
在模式生物中的自然变异的遗传学研究提供了一个在基因功能分子分析和对适应性及自然选择的进化研究的桥梁。 - Biology is driven by random mutations and natural selection.
生物进程基于随机突变和自然选择。