解析 A。解析:在沙漠生态系统中,仙人掌能够长时间储存水分。从语法看这是一个特殊疑问句。Cacti(仙人掌)是沙漠生态系统的典型植物,有储存水分的能力。Flowers in the forest(森林里的花朵)属于森林生态系统,Deer(鹿)是森林或者草原生态系统的动物,Birds in the grassland(草原里的鸟)属于草原生态系统。
In a desert ecosystem, plants usually have special adaptations to survive. Which of the following is a common adaptation? A. Large broad leaves B. Shallow root systems C. Thick cuticles to reduce water loss D. High stomatal density 相关知识点: ...
A. The number of scorpions will double immediately. B. The number of scorpions will decrease. C. The number of scorpions will first increase and then decrease. D. The number of scorpions will first decrease and then increase. 相关知识点: 试题...
Picture a desert in your mind, and you'll probably envision a hot, dry landscape with intense sunlight. Right there, you have many of the key abiotic factors that influence the desert ecosystem. In addition, the type of soil is also an important factor; sandy deserts are common, but there...
A large amount of standing water C. A diverse range of adapted plants and animals D. Continuous snowfall 相关知识点: 试题来源: 解析 C。解析:一个健康的沙漠生态系统的特征是有各种各样适应沙漠环境的动植物。虽然沙漠水资源稀缺,但并非没有动物(选项A)。选项B大量的积水不符合沙漠生态系统的特点。选项...
In the field study of the desert ecosystem, which of the following is an abiotic factor? A. Cactus B. Scorpion C. Sand D. Lizard 相关知识点: 试题来源: 解析 C。解析:在沙漠生态系统中,沙子属于非生物因素。选项A仙人掌是植物,选项B蝎子和选项D蜥蜴都是动物,它们都是生物因素。从语法上看,这是...
Restoring a desert ecosystem using soil salvage, revegetation, and irrigation 来自 Semantic Scholar 喜欢 0 阅读量: 35 作者:SR Abella,LP Chiquoine,AC Newton,CH Vanier 摘要: Restoration can help reverse degradation and desertification.We tested how topsoil and irrigation affected survival of 23 ...
ecosystem- a system formed by the interaction of a community of organisms with their physical environment system,scheme- a group of independent but interrelated elements comprising a unified whole; "a vast system of production and distribution and consumption keep the country going" ...
Madagascar's ecosystems range from rainforest to semi-desert. 马达加斯加生态系统类型多样,从雨林到半荒漠等不一而足。 来自柯林斯高阶英语词典 2. ...the forest ecosystem. 森林生态系统 来自柯林斯高阶英语词典 3. I'm the person who watches over the delicate ecosystem of South Park. 我是南方公园脆弱...
The Health of ecosystem is the base of ecosystem sustainability and the base of environmental health. Desert ecosystem is the typical ecosystem in desert regions and the base of developing the environmental and society in desert regions. This article, based on the analysis of ecosystem health, prob...