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
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統計: A(2), B(104), C(6), D(3), E(1) #938276
統計: A(2), B(104), C(6), D(3), E(1) #938276