越来越多的证据表明，陨石的撞击对地球产生了重要的影响，特别是在生物进化领域。
There is increasing evidence that the impacts of meteorites have had important effects on Earth, particularly in the field of biological evolution.
研究结果为一种长期存在的假设提供了最好的证据，即单半球睡眠是在生物寻找敌人的过程中进化而来的。
The results provide the best evidence for a long standing supposition that single hemisphere sleep evolved as creatures scanned for enemies.
她是从一只成年母羊的单个细胞中克隆出来的，这推翻了长期以来一直坚持的科学教条，该教条宣称这样的事情在生物学上是不可能（发生）的。
She was cloned from a single cell of an adult female sheep, overturning long-held scientific dogma that had declared such a thing biologically impossible.
我们在生物课上解剖了一只青蛙。
我在生物学领域的大部分同事思维仍很僵化。
Most of my colleagues in biology are still very mechanistic in their thinking.
新的PNAS研究也揭示了意义和幸福之间的差异，但只是在生物学层面上。
The new PNAS study also sheds light on the difference between meaning and happiness, but on the biological level.
在生物医学科学的竞争中，一些以微弱劣差距掉或赢得了资助的科学家完成了研究。
In the competitive game of biomedical science, research has been done on scientists who narrowly lost or won grant money.
因此，衰老和死亡不应被视为不可避免的事，尤其是在生物具有诸多自我修复机制的情况下。
Thus aging and death should not be seen as inevitable, particularly as the organism possesses many mechanisms for repair.
长期以来，生物学家一直在争论鸟类的产蛋在生物学上是否具有很高的成本，有的理论认为产蛋对能量或营养的要求很高。
Biologists have long debated about whether egg production in birds is biologically highly costly, some theorizing that egg production is energetically or nutritionally demanding.
生物循环是化学物质在生物圈内的循环。
该概念在生物电子等排发现中得到了应用。
The concept developed applications in the discovery of bioisosterism.
康纳博士在生物领域很出色。
美国海军方面则将希望寄托在生物燃料上。
The American navy, for its part, is placing its faith in biofuels.
研究发现类似的技术也可以用在生物的组织上。
Researchers have found that something similar can be done with biological materials.
“我们已经在生物控制方面做得很好了，”赖斯说。
在生物燃料普及之前，我们必须应对几个紧迫的问题。
Before biofuels become widespread, we must tackle several pressing issues.
这两项研究分别发表在生物精神病学期刊和尼古丁与烟草研究杂志上。
The studies were published in the journal Biological Psychiatry and Nicotine & Tobacco Research respectively.
这是因为在生物仿制领域有一个比成本更难以克服的障碍：法律诉讼。
That is because there is an obstacle to biosimilars even more formidable than cost: lawsuits.
在生物乙醇与燃油关联的情况下，商品家族里这一背驰是站不住脚的。
This divergence within the commodity family is untenable, given the bio-ethanol linkage to oil.
供不应求的根本原因是谷物在生物燃料如乙醇制造方面的应用不断增多。
The culprit is the growing use of grains to make biofuels, such as ethanol.
我们依然固执的坚持认为，在生物机器上会附着一个有生命的灵魂，一个精神鬼魂的观点。
We still cling stubbornly to the idea of an animating soul, a spiritual ghost in the biological machine.
相比之下，这里有一个清楚的理由，让我们去关注克隆技术在生物繁殖方面的用处。
By contrast, there is a clear reason to be concerned about the use of cloning in animal breeding.
公司的离子芯片相当于一部可以“阅读”化学品，直接在生物与数字世界之间传输信息的相机。
The company's ion chip is the equivalent of a camera that can "read" chemicals, transmitting information directly between the biological and digital worlds.
原则上，基因工程学很简单，但要在生物基因序列恰当的地方植入新基因却颇为困难。
In principle, genetic engineering is simple, but inserting a new gene into the right place in an organism's genome is fraught with difficulty.
从去年的得奖校友与来自英国爱丁堡大学的研究小组成员在生物探测器中加入砷探测器。
Alumni from last year's winning entry are collaborating with team members from the University of Edinburgh to combine the bio-sensor with an arsenic detector.
但是它们也导致了一些紧迫的问题，需要在生物燃料在全球普及、特别是在非洲普及之前解决。
But they also raise pressing issues that need addressing before biofuels become widespread around the world, and in Africa in particular.
但是它们也导致了一些紧迫的问题，需要在生物燃料在全球普及、特别是在非洲普及之前解决。
But they also raise pressing issues that need addressing before biofuels become widespread around the world, and in Africa in particular.
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