問題詳情

28. The producers in aquatic ecosystems include organisms in which of the following groups?
(A) photoautotrophs
(B) plants
(C) alga
(D) cyanobacteria
(E) A, B, C, and D are all correct

參考答案

答案：E
難度：適中0.666667
統計：A(0),B(0),C(0),D(1),E(8)