問題詳情
49.tWhat is "ecological niche"?
(A)tChanges in the composition and structure of terrestrial communities
(B)t The variety of different kinds of organisms that make up the community
(C)tAn interaction between species that benefits one of the species but neither harms nor helps the other
(D)tThe sum of a species' use of the biotic and abiotic resources in its environment
參考答案
答案：D
統計：A:0,B:0,C:0,D:1,E:0
難度：計算中