In the tundra ecosystem, when the snow turns blackish in some areas, it may indicate _. A. Melting ice due to global warming B. The presence of certain unique plants C. A new type of snow - making process D. An increase in volcanic activity 相关知识点: ...
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: ...
Ecosystems in the tundra biome feature plants and animals adapted to life in a cold, dry climate. The word “tundra” is descriptive of the landscape in this biome and means “treeless plain.” Biomes are regions with a particular climate where a community of organisms coexist. At first glan...
美 英 un.冻原生态系 网络苔原生态系统 英汉 网络释义 un. 1. 冻原生态系
Tundra ecosystemsare characterized as being treeless and snow-covered. The snow melts briefly in spring and summer, producing shallow ponds. During this time, lichens and flowering plants typically grow. Because of the ice that covers the land in the tundra, this type of ecosystem is important ...
In a tundra ecosystem, which non - biological factor restricts the growth of plants most? A. Short growing season. B. Abundant snowfall. C. Few herbivores. D. High soil acidity. 相关知识点: 试题来源: 解析 A。解析:在苔原生态系统中,短暂的生长季对植物生长的限制最大。大量降雪不是最主要的...
Reserves not only pristine forests, Tundra, meadows, lakes, rivers, swamps, and so on, is typical of Eurasia mountain ecosystem in the northern half of the representatives. 翻译结果4复制译文编辑译文朗读译文返回顶部 In the protected area not only has a pristine forest, there are Toyota tundra,...
Ecological of a grazing ecosystem in artic maritime tundra that has been influenced by millennia of human habitationBerkeley Electronic Press Selected WorksNancy HuntlyK GillilandJ KnudsenH MaschnerD JohnsonCelebrating the Legacy of Samuel J Mcnaughton, A Science Conference...
In the tundra of Alaska, Chapin et al. (1978) found that the soil organic matter contained 64% of the total phosphorus in the ecosystem and had a mean residence time of 220 years, while available phosphorus in soil solution comprised 0.3% of the total phosphorus and had a residence time ...
For instance, a tundra is defined by the temperature and amount of precipitation it receives. By combining both temperature and precipitation variables, ecologists can understand how certain areas function similarly to one another, even if they are disjunct. For instance, the rainforests of South ...