The world's population is expected to reach 7,000 million by the year 2000, but already scientists have produced new and better varieties of wheat and rice and animal.
到2000年，世界人口预计将达到70亿，但是科学家已经培育出了新的、更好的小麦、水稻和动物品种。
They need, for example, to explain "why an animal population is affected by changes in rainfall, and what might be done to protect it."
比如，他们需要解释动物种群为什么会受到降雨量变化的影响，以及可以采取何种预防措施。
It says: "Impacts from agriculture are expected to increase substantially due to population growth increasing consumption of animal products."
报告上说：“随着人口增长，畜产品的消耗量会增多，农业带来的冲击会增强。”
Over the past 25 years, Taiji (population 3, 600) has become a flashpoint for animal-rights activists.
在过去的25年，太地(人口3,600)变成动物权利活动分子聚集的热点地区。
Saving the animal population from a worldwide flood required great attention to logistics and details.
保存各种动物免受洪水侵袭，需要在补给活动的细节上花费许多的心力。
Bayer will help the local population with knowledge and skills in crop protection as well as animal and public health.
拜耳将为当地人民带去关于农作物保护、动物健康及公共卫生等方面的知识和技能。
More and more, these diseases are a public health threat, and almost every year the world's population is at risk of another disease of animal origin.
这类疾病不断增加对公共卫生的威胁。世界人口几乎每年都要受到一种新的源自动物的疾病的威胁。
The law ought to cover animal population control and responsible pet ownership, which means people should vaccinate their animals from rabies and other contagious disease.
法律应该涵盖动物数量控制和宠物主人责任等方面的内容，这意味着人们应该为动物接种疫苗以防止狂犬病和其他传染性疾病。
The habitat destruction has contributed to a plunging animal population throughout the region.
在整个区域内，野生动物栖息地的破坏已经成为动物数量大幅度缩减的元凶。
Though patterns can be described — nutrient levels shift, an animal population grows, another shrinks — it can be hard to know what’s coincidental and what’s linked.
我们虽然能够描述各种模式——营养水平的变化、某种动物数量的增加、另一种动物数量的减少——但是要知道哪些纯属巧合，哪些有必然的联系，可能会很难。
If we can control the amount of animal RACES as well as we control our population, then we both can protect animals and can be less trouble, less dead and less sad.
如果，正像我们人类要控制自己的种群一样控制各种动物的种群数量，那么，我们既保护了它们，也可以少点儿麻烦，少点儿死亡，少点儿悲哀。
Zimbabwe's animal population has more than doubled to 100, 000 elephants in the past 30 years and national parks officials say the country has the capacity to only accommodate half that number.
在过去30年里，津巴布韦的动物数目翻了一番，现在已经有10万只大象，国家动物园的工作人员说，津巴布韦只能容纳5万只。
By watching for the arrival of diseases in the animal population it should be possible to take measures to protect both people and local economies.
通过对动物种群中疾病流行情况的观察，我们可以采取措施，保护人类和经济不受危害。
Support is also coming from population growth and demand for animal feed.
人口增长以及对动物饲料的需求也为农产品价格提供了支撑。
The global ant population is estimated at 10, 000 trillion, greatly outnumbering any other sort of animal.
据估计，全球蚂蚁总量有1亿亿，远远超过其它任何物种。
Methods Animal experiments and population investigation methods were used.
方法采用动物实验和人群调查方法。
The concept and fundamentals of Systemic conservation of Animal and Poultry Genetics Resources (SCAPGR) and mathematical models of genetic structure with conservation population were proposed.
本文提出了畜禽遗传资源系统保存的概念、基本思想及其群体遗传结构变化的数学模型。
The influence of pollutants on the frog gonad growth might lead to decline of amphibian animal population.
污染物对蛙类生殖腺发育的影响会导致两栖动物种群的衰退。
The objects of the impacts mainly include plant, wild animal, soil, water, atmosphere and population structure, etc.
冲击的对象主要是植物、野生动物、土壤、水体、大气和种群结构等。
Due to human population explosion and to merciless hunting methods, many animal species have already been destroyed.
由于人口剧烈增长和竭泽而渔的捕猎方式，许多动物的品种已被灭绝。
Their studies include genetic engineering, population genetics, animal health and husbandry, and more.
研究的范围包括遗传工程，种群遗传学，动物健康和畜牧业等。
The water quality of Urumqi river was evaluated using biological index. Which is on the basis of analysis of the population structure of benthic animal in Urumqi river.
通过对乌鲁木齐河底栖动物种群结构的分析，利用生物指数评价乌鲁木齐河水质状况。
The monitoring index system include such content as meteorology, vegetation, soil, bird, animal, soil and water loss, population, land using, livestock raising, economy and so on.
监测指标体系包括气象、植被、土壤、地形地貌、鸟类、兽类、水土流失、人口、土地利用、畜牧、经济等内容。
The largest one had the largest quantity of human population, natural resource, animal and the love from the God.
最大的一块陆地拥有最多的人口、自然资源、动物，以及上帝最多的眷顾。
The social and economic characteristics in pastoral area are small population density and great contradiction between forestry and animal husbandry.
牧区（风沙区）具有人口密度小，林牧矛盾突出的特点。
In recent years, this technology has been applied to study the microbial population of animal intestinal tract.
近年来这一技术逐渐运用到对动物肠道菌群的系统研究上。
Destruction of haBitats, disastrous environmental and climatic changes can reduce an animal population.
生存地的破坏，环境和气候灾难性的变化会造成某种动物的减少。
Destruction of haBitats, disastrous environmental and climatic changes can reduce an animal population.
生存地的破坏，环境和气候灾难性的变化会造成某种动物的减少。
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