consist of由……组成;由……构成①在于___ (=lie in)②生态系统是由一个区域里相互作用的生物和非生物构成的。An ecosystem _
If a predatorHow does an ecosystem(生态系统) work? What makescan eat several species,it can survive the extinction(灭绝) ofthe populations of different species the way they are? Why areone of them. And if a predator can move on to another speciesthere so many flies and so few wolves?
1[析微点·厚积语言基础][1]How does an ecosystem(生态系统) work? What makes thepopulations of different species① the way they are? Why are there so many flies①微积累单复数同形词汇大集合and so few wolves? To find an answer, scientists have built mathematicalspecies n.物种;种类models of ...
【题目】How does an ecosystem(生态系统) work? What makes the popultioms of ifferet species the way they are? Why are there somuny flies and so few wolves? To find an answer, sciemtists have built mathematieal models of food webs, noting who eats whom andhow much eaeh one eats.With...
【题目】4.consist of由……组成;由……构成①=lie in在于②与……一致③An ecosystemthe living and non-livingthings in an area that interact with one another.生态系统是由一个区域里相互作用的生物和非生物构成的。④Listening is thus an active, not a passive, behaviorhearing, understanding and ...
【题目】How does an ecosystem(生态系统) work? What makes the populatons of dfferent species the way theyare? Why are there so many lies and so few wolves ? To find an answer, scientists have built mathematical modelsoffood webs, noting who eats whom and how much each one eatsWith such...
[析微点 ·厚积语言基础][1] How does an ecosystem (生态系统) work? What makes the populations of different species① the way they are? Why are there so many flies①微积累— —单复数同形词汇大集合:and so few wolves? To find an answer, scientists have built mathematical species n.物种;...
B. Most food webs consist of more strong links than weak ones, which may keep species from driving one another to extinction. C. Prevention is of vital importance because once an ecosystem breaks down, it is quite difficult for it to recover. D. Food webs may be dominated by many strong...
根据最后一段第二句“Ideally,the system would tell us when to adapt human activities that are pushing an ecosystem toward a breakdown or would even allow us to pull an ecosystem back from the borderline."可知,预警系统是通过发出需要采取预防行动的信号来帮助我 们维护生态平衡。 故本题选D项。
How does an ecosystem(生态系统)work?What makes the populations of different species the way they are?Why are there so many flies and so few wolves?To find an answer, scientists have built mathematical models of food webs, noting who eats whom and how much each one eats. With such models...