問題詳情
2. What is the primary function of the vascular cambium in plants undergoing secondary growth?
(A) Producing secondary xylem towards the inside
(B) Producing secondary phioem towards the inside
(C) Increasing the length of stems and roots
(D) Developing the epidermis in young plant tissues
參考答案
答案：99
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中