一些生物需要两种不同攻击的组合来克服伤害减免。
A few other creatures require combinations of different types of attacks to overcome their damage reduction.
这就是为什么较大的陆生生物需要在比例上更粗壮的腿来承受自身的重量。
This is why larger land organisms need to have proportionally thicker legs to support themselves.
多细胞生物需要身体中大部分的细胞采取极大的达尔文牺牲，牺牲其本身的繁殖。
Multicellularity requires most of the cells in a body to make the supreme Darwinian sacrifice, by giving up reproducing.
刘易森称，长命物种很容易被钓丝意外缠住，因为这些生物需要很长时间才能繁殖。
Lewison said that long-lived species are particularly affected by accidental entanglement in fishing lines, because these species take so long to reproduce.
大多数海洋生物需要氧气才能生存，因此死亡区对于许多水生物种来都证明是致命的。
Most marine organisms need oxygen for survival, and dead zones prove fatal for many aquatic species.
由于较大的浮游生物需要更多的养分，为了补充耗尽的养分，它们对于水体中的垂直混合有着更高的需求。
Because larger plankton require more nutrients, they have a greater need for the vertical mixing of the water column that restocks depleted nutrients.
他告诉BBC新闻说，“浮游生物需要太阳光线和来自下层的营养，但是越来越明显的海水分层抑制了其营养的来源。”
"The plants need sunlight from above and nutrients from below; and as it becomes more stratified, that limits the availability of nutrients," he told BBC News.
社会科学的中间立场近来被称为“社会生物学”，它认为我们至少学习了一些以生物需要和进化为基础的特有的文化行为。
The social science middle-ground, lately known as sociobiology, claims that we learn at least some specific cultural behaviors on the basis of biological need and evolution.
德国比勒菲尔德大学从事微生物研究工作的的Olaf Kruse如是说，但是这些微生物需要在严格的厌氧条件下才能工作。
But these other microbes need strict anaerobic conditions to work.
美国环保署在很久之前就认可二氧化氯液体喷雾或二氧化氯气体对气味和微生物的抑制功效，包括在食品里、家中和任何有微生物需要被杀死的地方。
The EPA long ago approved spraying of ClO2-generating liquids or gas for odor and germ control on food products, home fabrics, and anywhere that germs need to be killed.
事实上，科学家已经掌握了评估生物控制蕨类植物的影响所需要的大量信息，但是这些信息在许多个人、组织和政府机构中传播开来。
In fact, scientists already have much of the information needed to assess the impact of biological control of bracken, but it is spread among many individuals, organizations, and government bodies.
除了医生，我们需要更多的社会学家、生物学家、城市规划者和专业律师。
In addition to the doctors, we're going to need more sociologists, biologists, urban planners and specialized lawyers.
吉本斯解释：“这就像一个不需要淀粉或者纤维素就能生产出生物燃料分子的小型工厂。”
"They are like little factories that spit out biofuel molecules without the need for starch or cellulose, " explains Gibbons.
我们已经阅读了足够多的背景资料，但我认为我们需要组织好我们在演讲期间将要谈论的关于生物燃料的内容，以及顺序。
We've done enough background reading, but I think we need to organise exactly what we're going to say about biofuels during the presentation, and the order.
人们已经开始努力确定使用昆虫作为生物控制手段的可行性，但仍认为有效的生物控制手段还需要数年时间。
Work has begun to determine the feasibility of using insects as biological controls, but effective biological controls are considered years away.
生物学家研究野生猴子时，有时需要某只猴子的遗传物质DNA来确定其亲子关系。
Biologists studying wild monkeys sometimes need the genetic material DNA from a particular monkey to determine the animal's parentage.
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.
这份来自生物多样性和生态系统服务政府间科学政策平台（IPBES）的报告明确指出了什么是利害攸关的以及什么需要改变。
The report from the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) is clear on what's at stake and what needs to change.
每种生物都需要繁殖。
地球上所有的生物都需要与其他生物共存。
All living things on the earth need other living things to live with.
我们需要通过TLC 生物自显影技术评估其抗氧化能力。
We need to evaluate its antioxidant capacity by TLC-bioautography.
如果两种形式都需要，则该生物是严格的混合营养型。
If both forms are required, the organisms are mixotrophic sensu stricto.
只需要吸入10-50个微生物就能引起伤寒嗜热症。
Only 10-50 organisms need be inhaled to cause typhoidal tularemia.
即便你并不喜欢自己的同事，但因为人类是社会性的生物，需要定期与人进行交流。
Even if you don't necessarily like your colleagues, humans are social creatures and need people to talk with on a regular basis.
一方面是计算机的计算能力，生产商正在努力制造强大的计算机以应对生物2.0需要处理的大量数据，和设计处理数据所需的大量软件。
One, in computing power, is generic—though computer-makers are slavering at the amount of data that biology 2.0 will need to process, and the amount of kit that will be needed to do the processing.
要确认一个基因的确正在被选择，生物学家需要进行其他测试，例如比较被选的和没被选的基因形式来看它们有什么差异。
To verify that a gene has indeed been under selection, biologists need to perform other tests, like comparing the selected and unselected forms of the gene to see how they differ.
随着这一技术达到商品化水平，精炼这些生物燃料需要到农村，并且为美国人提供很好的工作。
And as this technology reaches commercialization levels, refineries producing these biofuels will need to dot the countryside, providing good paying jobs for Americans.
然而，英力士生产的生物乙醇需要和化石燃料搭配使用，原因是英国的汽车一般都不能单独燃烧生物乙醇。
The bioethanol that Ineos produces will have to be combined with a fossil fuel, however, because very few cars in Britain can run solely on bioethanol.
对于语言，理由可能是区分人群这样一个的文化上而非生物学上的需要。
For languages, the explanation may be a cultural rather than biological need to distinguish populations.
这就意味着要计算出不同种类的生物炭分别需要多少吨才能消除一吨CO2，还需要制定很多政策。
That would mean working out how much of what kind of biochar counts as a tonne of CO2 sequestered, and would also need a lot of policing.
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