natural selection的例句大全

In addition, two more important natural factors in site selection are drainage and soil condition.

另外, 排水和土壤状况是在选择场地时必须要考虑的自然因素.

Due to the double effects of natural and artificial selection, the rule of crop is special compared with the natural one in the natural one in the niche construction.

作物的传统品种与新品种相比，具有较强的进化惯量与较弱的进化动量；在自然选择与人工选择双重作用下，作物生态位的构建机制有其特殊性。

A trial-and-error walk, such as that which underlies natural selection, can only get you nowhere fast.

至于那种试错的方式, 比如潜藏于自然选择中的方式, 只会迅速让你一事无成.

Natural selection merely selects away the deformed wing, the unseeing eye.

自然选择只不过选掉了那些畸形的翅膀或者那些瞎了的眼睛.

Through natural selection, weeds have developed efficient mechanisms of root and snoot growth.

通过自然选择, 野草获得了根苗生长的有效机制.

The trick is not to allow Pseudomonas to use natural selection as a weapon against us.

这种方法使得假单胞菌不能将自然选择作为一种武器来对抗我们.

Natural selection becomes now the overall name for inequalities of survival or of productive rate.

自然选择现在成为生存或生产率差异的全称.

Genetic drift can even counteract natural selection.

遗传漂变甚至可以抵消自然选择.

In sharp contrast to the Darwinian theory of evolution by natural selection.

中性理论与达尔文的自然选择进化论有明显的差别.

Once fitness is created, natural selection is peerless for winnowing out the duds.

一旦创立了适合度, 自然选择去粗汰劣的势头就无可匹敌了.

They were natural and wild, not the product of generations of artificial selection.

那是自然的,是野生的, 并非几代的人工选择的产品.

This paper presents the anti icing and deicing system, special meteorological equipment and selection of airfield meteorological condition for natural icing flight test, and flight safety of natural icing flight test.

介绍了Y7－200A飞机防冰除冰系统、自然结冰飞行试验所需气象专用设备和机场气象条件的选择以及自然结冰的飞行安全。

While based on the evolution of three subsystems, specialized market fulfils co-evolution under the coupling self-stabilizing mechanism of subsystems and the self-optimizing mechanism of 'artificial selection' and 'natural selection'.

而专业市场以三大子系统的演化为基础，通过子系统耦合的自稳定机制、人工选择与自然选择的自优化机制实现了协同演化。

Although it was gone through evolution by artificial selection and natural selection, Allium tuberosum kept little differentiation from Allium ramosum.

虽然韭经历了长期的人工选择和自然选择，但与野韭的分化仍然较小。

The effect of artificial selection and natural selection on the origin and evolution of the characters was also discussed.

对人为选择和自然选择在部分性状的起源与演化中的作用进行了探讨。