细胞是构成一切生物的单位。
The cell is the unit of which all living organisms are composed.
美国航空航天局已经启动了一个为期10年的寻找外星生物的项目。
NASA has started a 10-year search for extraterrestrial intelligence.
煮沸是杀死这些生物的最好的方法。
真正的威胁会来自于外星智慧生物的发现。
The real threat would come from the discovery of extraterrestrial intelligence.
这是一本关于海洋生物的好书，适合儿童阅读。
从化石记录中可以了解到一些已经灭绝、但已经完全变成海洋生物的鲸目动物。
Extinct but already fully marine cetaceans are known from the fossil record.
总氧微生物的计数的添加能有效分解有机物。
海洋中的甲壳类生物的数量真的很多。
The number of shelled creatures in the ocean is truly dizzying.
这两个党将成为满是生物的池塘中之大鱼。
They will be big fish in a pond teeming with other creatures.
明确表明这些新生物的影响很困难。
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.
罐头制造中重要微生物的耐热性。
什么使我们人类不同于其他生物的呢？
甲烷的释放可以让海底生物的新陈代谢更加活跃。
Methane that is release can stimulate deep sea biological activity.
现代鱼类的分解方式与远古生物的类似。
The way modern fish fall apart is similar to the way ancient creatures did.
我们天生就比其它生物的情感更为复杂。
We are complex emotional beings in nature compared to any other living animal.
另一方面，科学家还需要弄清这些生物的生存机理。
On the other hand, scientists have had to explain how such creatures functioned.
但在北美的这里，它面临着之前从未见过生物的竞争。
But here in North America, it has competition from creatures it never encountered before.
所有生物的每个细胞内部都存在DNA分子链。
Inside every cell in all organisms, there are strands of DNA.
这种生物的不同种类生活在海洋的表面或底部。
Different species of these lived at the surface and the bottom of the ocean.
这个火红的星球甚至可能曾有利于生物的繁衍。
对这个问题的回答将关系到地球上大多数生物的命运。
On that very question could hinge the fate of much of life on Earth.
另外，那些直接接触到肉的表面也要进行原生生物的鉴定。
In addition, protozoa were identified on surfaces which come into direct contact with meat.
然而，科学家们十分困惑，这些生物的食物来源又是什么呢。
Yet scientists were puzzled at what the food source would be for these critters.
最近几年，很多森林生物的研究者们描绘了一副完全不同的画面。
In recent years, many investigators of forest life have painted a far different picture.
要把利用光合微生物的大胆想法变成现实，还有不少问题要解决。
Problems remain, however, in putting the bold idea to practical use.
斯通表示，值得一提的是，它发现了一些以往未知微生物的新品种。
What's more, said Stone, it found several strains of previously unknown microscopic organisms.
如果挽救了生物的生存环境，也就等于同时不自觉地挽救了实体环境。
If we save the living environment, we will also automatically save the physical environment.
如果挽救了生物的生存环境，也就等于同时不自觉地挽救了实体环境。
If we save the living environment, we will also automatically save the physical environment.
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