根据文章最后一段Ideally,thesystemwoul d tell us when to adapt human activities that are pu shing an ecosystem toward a breakdown or would ere n allow us to pull an ecosystem back from the border line. Prerention is key, scientists say, because once e cosystems pass their tipping point(...
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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. Prevention is key,scientists say, because once ecosystems pass their tipping point(临界点), it is remarkably ...
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In an ecosystem, the matter gets transferred from one of its forms to another. Matter present in the ecosystem is used to build the bodies. The matter...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
Ideally,th e sys tem would tell us when to adapt human activi ties that ar e pushing an ecosystem toward a b reak down or would even allow us to pull an e cosystem back from th e borderline. Prevention is key, scientists say,becaus e onc e ecosystems pass their tipping point (临界...
Log In Sign Up Subjects Science Ecology What is an ecosystem? Explain the two types of ecosystems that exist.Question:What is an ecosystem? Explain the two types of ecosystems that exist.Types of Ecosystems:Many different types of ecosystems exist in all regions of the world. Ecosy...
webs , for instanc e , consist o f man y weak links rather than a few strong ones.When a predator(掠食动物)always eats hug e n umbers o f a singl e prey(猎物) , th e two species ar e strongly link e d ; when a predator lives on various species , they ar e weakly linked....
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...
Which animal lives in the hydrosphere and lithosphere? What plants live in the hydrosphere? What ecosystem services are provided by freshwater rivers and lakes? What fish live in the savanna biome? What kind of aquatic ecosystem is adversely affected by runoff?