The Silk Road spirit is consistent with the ideal of “all states joining together in harmony and peace” long upheld by the Chinese nation, with the Chinese people’s principles of amity, good neighborliness and “helping others to succeed while seeking our own success”, and with the call ...
The key to ecological restoration is to make the ecosystem ___ again. A. healthy B. sick C. dead D. weak 相关知识点: 试题来源: 解析 A。解析:生态修复的关键是让生态系统再次健康起来。选项B“sick”是生病的,这是生态修复要改变的状态;选项C“dead”是死亡的,与生态修复目标相反;选项D“weak”...
In a healthy ecosystem, there is a great deal of species ___, which is essential for ecological balance. A. similarity B. homogeneity C. diversity D. sameness 相关知识点: 试题来源: 解析 C。解析:这题主要考查与生态平衡相关的物种概念的词汇。在一个健康的生态系统中,物种多样性对生态平衡至关...
What is a healthy ecosystem? Aquatic Ecology 33: 105–115.Costanza R, Mageau M. What is a healthy ecosystem? Aquatic Ecology. 1999; 33 :105–115. doi: 10.1023/A:1009930313242. [ Cross Ref ]Costanza, R., and M. Mageau. 1999 . What is a healthy ecosystem? Aquatic Ecology 33 : 105 ...
A选项“community”更多指生物群落,但这里强调的是动植物的多样性;B选项“biodiversity”就是生物多样性的意思,丰富的生物多样性对健康的生态系统是至关重要的,这是人与自然和谐共生的关键因素;C选项“population”指种群数量,不能全面表达动植物种类的多样性;D选项“group”群体,没有准确表达出生物多样性的概念。
business development business development business ecosystem co business enterprise a business exhibition business exploitation business financial ma business has certainl business houses business hub business improvement business informatics business information business intelligence business is business business is ...
A. Only a few types of organisms exist. B. There is a balance between different organisms. C. One type of organism dominates the whole ecosystem. D. There are no decomposers. 相关知识点: 试题来源: 解析 B。解析:一个健康的生态系统的特征是不同生物之间存在平衡。如果只有少数几种生物存在,生...
A. To keep the ecosystem stable B. For our entertainment C. To maintain biodiversity D. To have a healthy E. nvironment 相关知识点: 试题来源: 解析 B。选项 A“保持生态系统稳定”、选项 C“维持生物多样性”、选项 D“拥有健康的环境”都是保护动物的正当理由。而选项 B“为了我们的娱乐”不是...
The scale of health insurance premiums in 2020 is expected to exceed 1.2 trillion yuan, and the proportion of claims paid for medical and health expenses will reach 4.5%. Under the theme of “Rationally Constructs the New Ecosystem, Technology Benefits the New Boundary”, HEIS 2019 will ...
Wild Essentials is a whole food combination with digestive enzymes and probiotics for supporting a healthy internal ecosystem. Learn more - click here Are you getting sufficient nutrients in the foods you eat? Active lifestyles require even higher levels of nutritious foods to rebuild, recover, nou...