鳍状肢可能确实是水生生物的必要反应，海龟、鲸鱼和儒艮也有鳍状肢。
Flippers may indeed be a necessary response to aquatic life, turtles, whales, and dugongs also have them.
巨噬细胞是在小鼠和其他哺乳动物的免疫系统对细菌等侵入性生物的反应中发挥作用的细胞。
Macrophages are cells that play a role in the response of the immune system of mice and other mammals to invasive organisms such as bacteria.
从纯粹的生物学意义上讲，恐惧始于身体系统对可能会伤害我们的事情的反应，也就是所谓的“战或逃反应”。
In a purely biological sense, fear begins with the body's system for reacting to things that can harm us—the so-called fight-or-flight response.
一些生物学家假设，如果一株植物处在另一株植物的荫蔽下，它就会停止生长，当它感知到红光与远红光的不寻常比例时，反应就会触发。
Some biologists hypothesize that a plant will stop growing if it's in the shade of another plant, a reaction that's triggered when it senses an unusual ratio of red light to far-red light.
你看，原来某些微生物是化学合成的——它们不需要阳光，因为它们从化学反应中获取能量。
You see, it turns out that certain microorganisms are chemosynthetic—they don't need sunlight because they take their energy from chemical reactions.
化学自养生物和化学异养生物从无机氧化反应获得能量。
Chemoautotrophs and chemoheterotrophs obtain energy from inorganic oxidation reactions.
她觉得不可思议是因为这样就可能确定这些与人类相近的生物是如何对热作出反应的。
What makes it so cool is the possibility of determining how these near humans reacted to heat.
现行的多元聚合酶链反应(PCR)技术最多只能在50种生物内进行一次检测。
Current multiplex polymerase chain reaction (PCR) techniques can at most offer detection from among 50 organisms in one test.
生物学嘛他就知道如何给鸡剔去骨头，酿酒酵母和普通的面包酵母的反应变化。
His knowledge of biology was limited to the deboning of chickens and the behavior of Saccharomyces cerevisiae, common bread yeast.
外基因改变是受环境压力后的生物反应。
Epigenetic changes represent a biological response to an environmental stressor.
剑桥大学组的获奖设计使用内置藻类管和一台感光生物反应器来生产氢气。
The Cambridge team's winning design USES in-built algae tubes and a photo bio-reactor to generate hydrogen.
非生物可降解的工业化学物质被吸附到铁粉的薄层上面来，与铁膜上的电子反应而降解。
The non-biodegradable industrial chemicals are attracted to the surface of the iron shavings, where they react by sharing electrons with the iron and become degraded.
换句话说，我们所有的情感——爱恋、忧伤、快乐——全都是生物化学反应。
In other words, all our emotions - love, grief, happiness - are all biochem - ical.
泉水上部的石块被绿色生物膜覆盖，它通过阳光和硫化物自然的发生化学反应生存。
The top of the springs' rocks are covered with green biofilms, which use both sunlight and sulfide-naturally occurring chemicals from the springs-to survive.
DNA的脱落使生物反应更容易进行。 这称作DNA的翻译，它即DNA表达成为神经递质。
The loosening of the DNA makes it more available for the biological process, called transcription, that permits the gene to be expressed into neurotransmitters.
它们引起了细胞内的生物化学变化，并最终改变了大脑回路中对愉快的经历和记忆的反应方式。
They trigger intracellular biochemical events that eventually modify brain circuits that mediate the experience and memory of pleasure.
Novozymes正着手研究用淀粉或生物质代替矿物燃料制造丙烯酸树脂的生物反应。
Novozymes is working on a biological process to make acrylic acid (C3H4O2) from starch or biomass rather than fossil fuels.
其中的145种菌类可以辨别出他们分别取样于哪些生物质反应器。
145 of the bacteria were so unique they could be used to predict which bioreactor the bacterial sample came from.
这种生产方法的优点在于它可以通过增加植物的生物反应器来轻易地提高产量。
The advantage of this approach is that it can be scaled up simply by adding more bioreactors to the plant.
人类是高度复杂的社会性灵长类动物，所以我们对外界的反应很难用单纯的生物学或神经传递素来解释。
Humans are highly complex social primates and, because of this, our responses to the world can be difficult to explain with simple biology or neurotransmitters.
马克说，这种单酯的脱硫速度比真菌和细菌快10到20倍，并可挤入一个比生物脱硫过程紧凑得多的反应堆。
It works 10 or 20 times faster than a fungus or bacteria, and could be squeezed into much more compact reactors than a biological process, Makkee says.
坐在这谈论化学的人没有意识到原子本身在某种程度上就是一种假设，他们之间的相互反应更是如此，而生物反应又比前两者更甚了。
People who sit there and talk about it don't realize that molecules themselves are somewhat hypothetical, and that their interactions are more so, and that the biological reactions are even more so.
这应当能够让生物反应器源源不断地生产燃料——比从池塘中收获藻类，然后提炼油的传统工艺更有效率。
This should permit continuous production of fuels in a bioreactor - more efficient than the traditional process of harvesting algae from a pond and then extracting the oil.
藻类生物反应器将酿酒厂排出的废气输送到生长藻类的容器里，为它们提供养料。
The algae bioreactors move exhaust gas from the distillery into containers that grow algae, which feed on the gas.
为了造出一种合适的微生物，第一步需要找到能部分完成这项工作的微生物，想法儿让它在这个反应上有所专长。
Creating a suitable microbe involves starting off with one that does part of the job in question, and then convincing the microbe to specialise in that activity.
这就化解了和捕捉水母有关的难题，并且让使用生物荧光反应来侦测钙离子变得更加简单。
This bypassed the problems associated with jellyfish collection and made it much easier to use bioluminescent reactions to detect the presence of calcium ions.
耐药微生物引起的感染常常对标准化治疗没有反应，从而造成长期患病和更大的死亡风险。
Infections caused by resistant microorganisms often fail to respond to the standard treatment, resulting in prolonged illness and greater risk of death.
耐药微生物引起的感染常常对标准化治疗没有反应，从而造成长期患病和更大的死亡风险。
Infections caused by resistant microorganisms often fail to respond to the standard treatment, resulting in prolonged illness and greater risk of death.
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