問題詳情

36. Pores on the leaf surface that function in gas exchange are called _____.
(A) xylem cells
(B) stomata
(C) phloem cells
(D) cuticle
(E) upper epidermis

參考答案

答案：B
難度：簡單0.7
統計：A(1),B(14),C(2),D(1),E(0)