这些细菌实际上就是硫化氢和二氧化碳的结合体，而这种化学反应产生的有机物质是更大的有机体的食物。
These bacteria actually combine the hydrogen sulfide with the carbon dioxide and this chemical reaction is what produces organic material which is the food for larger organisms.
并非所有正常存在于活的有机体中的化学物质都是无害的。
Not all chemicals normally present in living organisms are harmless.
细菌是自然界中最简单的有机体之一，然而许多细菌还能使用一种在感染过程中起到关键作用的化学“语言”相互交谈。
Bacteria are among the simplest organisms in nature, but many of them can still talk to each other, using a chemical "language" that is critical to the process of infection.
这种令人难以置信的微生物是复杂有机体使用同一成分形成的，不含任何有害的化学物质…10年后，各种各样的新的微生物都会研制出来。
Complex organisms make use of the same components to do all this incredible stuff without any harmful chemicals... in 10 years, all sorts of new stuff will have been done.
类异戊二烯有个跟醇类一样的优势，那便是它们是许多有机体中生物化学成分所含有的。
Isoprenoids have the advantage that, like alcohols, they are part of the natural biochemistry of many organisms.
木卫二上的火山活动可以提供维持生命所需的热量，以及活有机体必需的化学物质。
Volcanic activity on the moon could provide life-supporting heat, as well as important chemicals needed by living organisms.
一位太空生物学家在《科学》上说这可以“重新定义生命”，因为这是很重要的实验室证据，它表明有机体可以有比以前认为更灵活的化学组成。
This "redefines life" said the astrobiology researchers reporting in Science magazine, because it was laboratory evidence that organisms can be more chemically nimble than previously thought.
相反，与经历几轮生物化学过程的有机体分子中的比例匹配。
Instead, it matches the ratio found when organic molecules have been through a few rounds of biochemical processing.
自养生物：一种能够从无机物质如光或化学能量中合成出自身食物的有机体。绿色植物，海藻及某些细菌都是自养生物。
Autotroph: an organism capable of synthesizing its own food from inorganic substances using light or chemical energy. green plants algae and certain bacteria are autotrophs.
自养生物一种能够从无机物质如光或化学能量中合成出自身食物的有机体。绿色植物，海藻及某些细菌都是。
An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs.
其卞要任务是发现新的振荡体系，研究反应机理及探索化学振荡反应与生命有机体的关系。
The major task is to discover new oscillating systems, investigate the mechanisms of these reactions and explore the relationship between oscillating chemical reactions and the living organisms.
过度的耕作、化学品的使用和栖息地的破坏，最终会破坏原本能成为我们的合作伙伴的有机体。
Excessive cultivation, chemical use and habitat destruction eventually destroy the very organisms that could be our partners.
营养学是将生物化学和生理学知识汇集于有机体与其食物供给之间相互关系的统一概念的科学。
Nutrition is the science that integrates knowledge of biochemistry and physiology into a unifying concept to the relationships between an organism and its food supply.
植物与其它有机体种间存在着通过次生物质为媒介的化学作用，这些化学作用在农业生态系统中则表现为植物对有害生物的化学防御。
There are chemical interactions manipulated by plant secondary metabolites between plant and other organisms, which act as plant chemical defense on pests in cropping ecosystems.
它们与化学分析有关，与测量有机体留下来的放射性碳数量有关。
They had to do with chemical analysis, something to do with measuring the amount of radiocarbon that's left in organic stuff.
如今，植物化感作用的研究事实上已扩展到以植物为中心的一切有机体及环境间通过化学物质为媒介的化学相互作用。
Now the center of allelopathy research in fact has been extended to all plant-organisms and the chemical interaction by the mediation of chemical substances between the environment.
他是发生在生物有机体产生能量并且维持生命的一种化学反应。
Its chemical reaction, which occurring in all living organisms generates energy and maintains life.
地衣，共生的有机体结合起来，真菌和藻类，可以是有力风化的动因和力量，所分泌的化学物质称为螯合物那造成岩石的破裂。
Lichens, symbiotic organisms that combine fungi and algae, can be powerful weathering agents, secreting chemicals called chelates that work to break down rock.
地衣，共生的有机体结合起来，真菌和藻类，可以是有力风化的动因和力量，所分泌的化学物质称为螯合物那造成岩石的破裂。
Lichens, symbiotic organisms that combine fungi and algae, can be powerful weathering agents, secreting chemicals called chelates that work to break down rock.
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