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1. What property of water accounts for the fact that molecules of water "grab" the walls of the thin xylem vessels?
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2. Water molecules pull each other like beads on a string; as one molecule is evaporated through a stoma, another is pulled up. What property of water is demonstrated here?
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3. Place the following in order (list the letters), from highest water potential to lowest water potential, under normal conditions.
a. Mesophyll of leaves
b. Outside air around leaf
c. Spaces around roots
d. Inside the xylem vessels
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