問題詳情
13. Which of the following is most likely to contribute to density-dependent regulation of populations?
(A) the removal of toxic waste by decomposers
(B) intraspecific competition for nutrients
(C) earthquakes
(D) floods
(E) fires
參考答案
答案：B
難度：適中0.6
統計：A(4),B(15),C(3),D(2),E(0)