The tundra ecosystem is very fragile, we should avoid ___ there. A. reducing pollution B. traveling carefully C. over - developing D. scientific research 相关知识点: 试题来源: 解析 C。解析:苔原生态系统非常脆弱,我们应该避免过度开发,过度开发会破坏苔原生态;reducing pollution减少污染是保护生态的...
Monitoring the climate change in the tundra D. Recording the wildlife in the tundra 相关知识点: 试题来源: 解析 B。解析:在不干扰的情况下研究苔原植物、监测苔原气候变化(monitoring the climate change)和记录苔原野生动物都是对苔原生态系统的科学研究行为,不会对其造成危害。而在苔原上修建管道(building ...
The ecosystem in an arctic tundra consists of a cold climate and the land is covered by snow with low rainfall for most of the year. Some vegetation does manage to grow for approximately 60 days that feed the wildlife. Answer and Explanation: ...
as well as with their non-living environments. The non-living environments encompass atmosphere, weather, sun, soil, and climate. An ecosystem can be expansive, with several hundreds of differentflora and faunaall living with a delicate balance, or it can be fairly small. ...
Plants in the tundra ecosystem usually have short growing seasons. What is the main reason for this? A. There is too much sunlight. B. The soil is too rich. C. The climate is very cold. D. There are too many animals. 相关知识点: ...
An ecosystem, a term very often used in biology, is a community of plants and animals interacting with each other in a given area, and also with their non-living environments. The non-living environments include weather, earth, sun, soil, climate and atm
Within each forest, each pond,each reef, or each section of tundra, you'l find many 70 (difference) ecosystems. 相关知识点: 试题来源: 解析 【解析】61.where62. to form63.on64. what65. changes66.left67.is68. larger69. generally70. different ...
Tundra Ecosystem The "tundra habitats" are those that are devoid of trees and blanketed with snow for most of the year. These ecosystems are most common in cold climes and areas with low or inadequate rainfall. Tundra ecosystems can be found in polar areas....
This study compares 6 years of COflux measurements in moist acidic tundra using autochambers and eddy covariance (Tower) approaches. We found that the tundra was an annual source of COto the atmosphere as indicated by net ecosystem exchange using both methods with a combined mean of 105 卤 17...
Chapter 2: ECOSYSTEM AND LIVING ORGANISMS What is an example of biosphere? The biosphere is defined as the area of the planet where organisms live, including the ground and the air. An example of the biosphere iswhere live occurs on, above and below the surface of Earth. ... The parts ...