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This activity contains 5 questions.

Question 1
1 Root pressure is positive pressure that helps to push water up out of the roots and into the aboveground plant. How is it formed?
End of Question 1

Question 2
2 Water vapor moves out of leaves through open stomata. This process is known as _____.
End of Question 2

Question 3
3 Xylem tissues create a system of very thin pipes that connect plant roots and leaves. Which option best describes the nature and function of xylem tissue?
End of Question 3

Question 4
4 Imagine that you spray a large, actively growing tree with a sealant that instantly seals off all of the stomata. What would happen in the xylem system?
End of Question 4

Question 5
5 What happens to the xylem system during drought, when water is scarce?
End of Question 5

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