1. 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。
2. English natural scientist whose `On the Origin of Species' formulated a theory of evolution by natural selection (1809-1882). 
   英国博物学家（1809-1882），他的《生物起源论》阐明了自然选择的进化论学说。
3. A group of organisms having common ancestors and certain distinguishable characteristics, especially a group within a species developed by artificial selection and maintained by controlled propagation. 
   属一群拥有共同祖先和明显特征的有机体，尤指属于同一物种的一群，通过人工选择来发展，通过有控制的繁殖来维持
4. The theory that the evolution of a species is influenced most strongly by internal factors and is not subject to the external forces of natural selection. 
   直向进化论关于物种的进化是受内部因素的强烈影响而非外部自然选择的影响的理论
5. psychological selection of athletes 
   运动员的心理选拔

查看更多例句 相关情景会话

• 1. 物种选择
  逆进化 counter-evolution...物种选择 species selection...分裂选择 disruptive selection
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• 2. 选择法
  {n.}分类选择 sorting by selection...选择法 species selection...[医]物种选择(动) specific gravity selection
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