解析 C。keystone species(关键物种)的丧失会对生态平衡产生重大影响。biodiversity(生物多样性)是生态系统的一个特征;ecological succession(生态演替)是生态系统的发展过程;ecological niche(生态位)是物种在生态系统中的角色。本题考查生态平衡相关术语。反馈 收藏 ...
a老师你的联系方式 Teacher your contact method[translate] a在宾馆吗? In guesthouse?[translate] aAN ECOSYSTEM CONSISTS OF ALL THE ORGANISMS LIVING IN A PARTICULAR AREA AS WELL AS THE NONLIVING ENVIRONMENTAL COMPONETS 生態系包括居住在一個特殊區域的所有有機體並且無生命環境COMPONETS[translate]...
硕士研究生英语学位 -22 ( 总分: 100.00 ,做题时间: 90分钟 ) 一、{{B}}PART I LISTENING COMPREHENSION{{/B}}(总题数:0,分数:0.00) 二、 {{B}}Section A{{/B}}( 总题数: 2,分数: 9.00) In this section, you will hear nine short conversations between two {{B}}Directions:{{/B}} spea...
An ecosystem is defined as an ecological community together with its environment, functioning as a unit. To be more ___41__, an ecosystem is a complex set of relationships among the living resources, ___42___, and residents of an area, composed of organisms that work together to remain...
In subject area: Earth and Planetary Sciences Microbial ecology is the study of the diversity, distribution, and interactions of microorganisms in ecosystems, and their role in recycling matter and energy. From: Encyclopedia of Ecology, 2008
flux is 1000 times smaller than the heat flux, it plays a key role in controlling the strength of the oceanic general circulation. In particular, energy input through wind stress is the most important source of mechanical energy in maintaining the stratification and circulation in the world ...
LUCC factors play a decisive role in maintaining the type and intensity of ecosystem services, can cause changes in the types, scales and spatial patterns [23], and can reflect the basic processes of the human–environment system. However, land use types differ greatly in their abilities to pr...
An ecosystem is a community of organisms that live and interact within a particular environment. In an aquatic ecosystem, that environment is water, and all the plants and animals in the system live either in, on or around that water. The specific setting and type of water, ...
Actinobacteria, which share the characteristics of both bacteria and fungi, are widely distributed in both terrestrial and aquatic ecosystems, mainly in soil, where they play an essential role in recycling refractory biomaterials by decomposing complex m
Each component of biodiversity, such as species richness, species composition, or species interactions, plays a role in ecosystem services. Ecosystem functioning depends on the presence of organisms from different functional groups (i.e., that perform different roles in ecosystem processes). For exampl...