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

a natural process resulting in the evolution of organisms best adapted to the environment
Synonym:survivalsurvival of the fittestselection

双语例句

Natural selection is a slower process with man than with any other creature.
自然选择对人类比起对其他生物是个较为缓慢的过程。
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。
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。
Financial history is essentially the result of institutional mutation and natural selection.
金融史实质上就是制度突变和自然选择的结果。
But the context of natural selection defines the narrow limits of the argument that Friedman and savage developed.
但自然选择这个大背景，限定了弗里德曼和萨维奇所提论点的狭小适用范围。
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。
Viruses have genes, can reproduce and are subject to the evolutionary pressures imposed by natural selection.
病毒有基因，能再生，需要应对自然选择的进化压力。
Natural selection has tended to reduce this randomization.
自然选择往往倾向于减少这种随机化现象。
Nature grants long periods of time for the work of natural selection.
自然界允许极长的时期，给自然选择来进行它的工作。
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。