For some organisms, the quest has been more challenging than for others.
对某些生物而言，这方面的搜索比另一些生物更具挑战性。
Some previous studies even looked at how some organisms such as mixotrophs can survive low light and low food conditions.
早前的一些研究甚至也观察了一些生物体(如混合营养体)在低光照低营养环境下生长的情况。
The total species and individual number fluctuated a little during the two months because some organisms were acting.
冬季少数生物还在活动，月间的总物种数和总个体数有所波动。
Some organisms have persisted with so little change that specimens living today are quite similar to their Paleozoic or Mesozoic ancestors.
有些生物一直很少变化，以至生存至今的生物与它们古生代或中生代的祖先仍十分相象。
As more and more genomes of some organisms have been known, cross-species comparative sequence analysis method has been more and more helpful.
随着人类对某些物种基因组的认识越来越全面，序列比较分析法变得越来越重要。
Some organisms produce light using just this simple chemical reaction, but many require additional helper molecules, known as cofactors, to make it work.
有些有机物只用这种简单的化学反应来产生光，但是很多其他的还需要叫做“辅因子”的分子，来帮助其工作。
The life property, the distribution and relationship of some organisms with the environment are discussed according to their size-frequency histograms and survivorship curves.
据一些种群的大小频率直方图和生存曲线讨论了部分生物的生存特征、空间分布及其与环境的关系。
Some of the large sedentary organisms associated with vents are also found at ordinary deep-sea temperatures many meters from the nearest hydrothermal sources.
在距离最近的热液源几米远的深海温度下，也发现了一些与火山口有关的大型静止生物。
These plasmids occur naturally in nature; they were discovered in micro-organisms and they also confer some biological properties onto micro-organisms.
这些质粒在自然界中自然存在；它们是在微生物中发现的，它们也赋予了微生物一些生物学特性。
Algae range in size from single-celled organisms to giant kelp plants. Some live near the surface of the ocean, and these algae need nitrogen to grow.
海藻包括小到单细胞有机体、大到巨型褐藻的多种类型植物，有些海藻生长于海面附近，依赖氮元素成长。
But if we properly understand how organisms in the environment protect us, maybe we can give a vaccine or mimic their effects with some innocuous stimulus.
但是，如果我们正确理解环境中的生物体是如何在保护我们的话，也许我们可以用疫苗或利用一些无害的刺激来模仿他们的效果。
Scientists have known for some time that life exists at such depths, but they thought it mostly consisted of single-celled organisms.
科学家们早已知道在这一深度存在有生命，但他们认为存在的主要是单细胞生物。
We are seeing changes in the way food chains work in the ocean because we are seeing massive declines in some sort of organisms.
我们看到由于某些生物体大规模下降，海洋中食物链供给方式正在变化。
The individual archaeans are some of the smallest organisms ever found.
这种古生菌是迄今为止发现的最小的生物体中的一种。
Trees are some of the longest-lived organisms on the planet.
树木是地球上寿命最长的生物之一。
New calculations suggest Titan's hydrocarbon lakes are loaded with acetylene, a chemical some scientists say could serve as food for cold-resistant organisms.
新的推测认为泰坦的碳氢湖充满了乙炔，一种可以成为耐寒生物养料的物质。
Some are using micro-organisms. Still others have a hybrid approach, part biotechnological and part traditional chemistry.
有的使用酶，有的使用微生物，还有的采用混合方法，部分是生物科技、部分是传统化学。
The aim of the Tara project is to correct some of that ignorance and identify many more of these organisms while we still have the chance.
鲍尔说：“Tara项目的目的是纠正一些谬误，和在我们仍有机会的时候识别更多有机体。
All phytoplankton photosynthesize, but some get additional energy by consuming other organisms.
所有的浮游植物都会进行光合作用，但某些植物还通过消耗其他生物来获取额外的能量。
Some are using enzymes. Some are using micro-organisms.
有些是用酶，有些使用微生物，还有一些采取一种结合生物化学和传统化学的方法。
Third some kind of strange surface chemistry, rather than living organisms, could be eating up the hydrogen.
第三，某种奇怪的表面化学物，而不是生物体，把氢气消耗光了。
Since then, some 430 outdated dams have been removed from U.S. rivers, opening up habitat for fish and other aquatic organisms and letting rivers flow like rivers again.
从那时起，约430座过时的水坝在美国河流上消失，此举打通了鱼群和其他水生物的返回栖息地的通道，并重新让河流川流不息起来。
Some systems use ultraviolet light to destroy harmful organisms.
某些系统使用紫外线光照来杀灭有害有机物。
In soft tissue and bone infections in warm countries we've known for some time that Gram-negative organisms can be as important or more important than Gram-positive infections.
我们已经知道，在温暖国家，软组织和骨骼感染时，有时候革兰氏阴性病菌和革兰氏阳性病菌一样重要，甚至更重要。
Probiotics are tiny organisms, usually bacteria, which occur naturally in some foods (such as yoghurt) and are added to others (such as milk and soya drinks).
益生菌是一类微生物，通常是自然生长在某些食物中的细菌(如酸奶)和其他饮料(如牛奶和豆制品饮料)。
Six controlled skin pigment and hair development. Four helped the immune system combat disease-causing organisms, such as malarial parasites, that are a problem in some places, but absent from others.
其中6个控制皮肤色素和头发的进化，4个促进免疫系统抗击疾病——从而使一些有机体，比如使在某些地方肆虐的疟疾寄生虫在其他地方绝迹。
Each handles some of the deadliest organisms known to man and animals: diseases that are highly infectious, fatal even in low doses and impossible to treat.
每所实验室都负责研究一些在人类和动物身上已发现的最致命的生物体：具有高度传染性的疾病，哪怕是很小剂量也会致命，而且绝无治疗的可能。
Each handles some of the deadliest organisms known to man and animals: diseases that are highly infectious, fatal even in low doses and impossible to treat.
每所实验室都负责研究一些在人类和动物身上已发现的最致命的生物体：具有高度传染性的疾病，哪怕是很小剂量也会致命，而且绝无治疗的可能。
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