本题目来源于试卷: Form and Function B.7 Transport，类别为 IB生物学
[单选题]
What is the main factor that causes thyj ,w.sbo (-uee pressure insiden6dwb yxt+brol8 4o,1zv922 r)z ijis xylem vessels to be lower than 2r bsoblr wj8 zivy ,t694 nz)2i1o+dxatmospheric pressure?
A. Cohesive properties of water inside xylem vessels
B. Evaporation of water during transpiration
C. Water molecules sticking to the walls of xylem vessels
D. Exchange of oxygen and carbon dioxide through the stomata
参考答案: B
本题详细解析:
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