Many biological processes are controlled by hormones.
许多生物变化过程都是由激素控制的。
Darwin eventually put forward a model of biological evolution.
达尔文最终提出了一套生物进化的理论模式。
Biological systems have been doing this for billions of years.
生物系统亿万年来都在这样做。
For women, the biological clock governs the time for having children.
对于女性，生物钟控制着孕育子女的时间。
To see the problem here more clearly, let's look at a different biological system, say, an acorn.
为了把这里的问题看得更清楚，让我们看一种不同的生物系统，比如说，橡实。
There is a biological rhythm for learning.
学习是有生物节律的。
Their invention is a small biological circuit they call E-Kaia.
他们发明了一种叫做 E-Kaia 的小型生物电路。
How can biological indicators show the opposite of economic indicators?
生物指标怎么能与经济指标背道而驰呢？
Such a perspective fundamentally changes our view of biological evolution.
这种观点从根本上改变了我们对生物进化的看法。
Looking at the basic biological systems, the world is not doing very well.
地球在基础的生物系统方面的状况并不是很乐观。
It is not, in principle, necessary for a biological system to age and die.
原则上来说，生物系统的衰老和死亡都不是必然的。
Are some of these differences biological and inborn, a result of evolution?
这些差异有的是生物性的，有的是天生的，是进化的结果吗？
Indeed, stability of the biological clock's period is one of its major features.
的确，生物钟周期的稳定性是它的主要特征之一。
Numerous biological structures and chemicals appear to be involved in aggression.
攻击行为似乎与许多生物结构和化学物质有关。
Once a biological control agent is released, it is difficult to control its speed.
一旦实施了生物控制手段，它的速度就很难控制。
Legal consequences of attempts at biological control present a potential minefield.
尝试进行生物防治的法律后果是一个潜在的雷区。
A prevalence of left-handed amino acids would indicate they were biological in origin.
如果左旋氨基酸占大多数的话，就说明这些氨基酸从根源上来说是具有生物性的。
This is less than the total biological production in the main water column, or pelagic zone.
它比主水体或远洋区的生物总产量要少一些。
This meant that some sort of biological clock was operating—and a very precise clock at that.
这意味着某种生物钟正在运作——而且是一个非常精确的生物钟。
There is a biological rhythm for learning, though it affects different people in different ways.
学习是有生物节律的，尽管它对不同的人造成影响的方式不同。
How effectively biological control can be pressed into service is proved by the following examples.
下面的例子证明了生物防治如何能有效地投入使用。
Following your biological rhythms and have a good rest, which can help you have a better performance.
遵循自己的生物钟，好好休息，这样才能表现更佳。
The people who want to enter medical schools are rated on reasoning, physical and biological sciences.
想要考医学院的人要在推理、物理和生物科学这些方面进行测试。
War may be a natural expression of biological instincts and drives toward aggression in the human species.
在人类物种中，战争可能是生物本能和侵略冲动的自然表现。
Last week, the group of scientists said they had found important biological qualities in some bat species.
上周，这组科学家表示，他们在一些蝙蝠物种中发现了重要的生物特性。
Today, the mainstream belief among scientists is that race is a social construct without biological meaning.
今天，科学家们的主流观点是，种族是一种没有生物学意义的社会结构。
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