A. It reduces competition among species so that they can co - exist, which helps maintain the balance of the ecosystem B. It allows species to have more space to reproduce, which is good for increasing biodiversity C. It makes each species more independent, so that when one species is in...
【题】 How does an ecosystem()work? What makes th e populations of differen t species th e way they are? Why ar e ther e so many flies and so few wolves? T o find an a nswer, scientists hav e built mathematical mod els of food webs, noting who eats whom and how much each on...
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. 一个生态系统是...
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...
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 ...
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 mode...
What is species diversity? A. The number of species in an ecosystem. B. The variety of different species living in an ecosystem. C. The size of an ecosystem. D. The health of an E. cosystem. 相关知识点: 试题来源: 解析 B。中文解析:物种多样性指的是生活在一个生态系统中的不同物种的...
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 ...
10.The author mentions lions, zebras and water buffalo to show that___. A.animals fall victim to bigger ones B.the ecology is on the road to recovery C.animals are corelated in the ecosystem D.species are firmly positioned in the...
As a general rule of thumb,if people are not sure what the species is, they should choose something else that they are more familiar with. With the marine ecosystem already weak and easily destroyed, the greatest threat is continued ignora...