問題詳情

28. Which type of plants keeps their stomata open at night, but closed in the day?
(A) C3
(B) C4
(C) CAM
(D) C3 and C4
(E) C4 and CAM

參考答案

答案:C
難度:適中0.5
統計:A(1),B(0),C(9),D(1),E(4)