Multiple Choice
What best describes the mechanism that causes stomata to open?
A) Water accumulates below the opening and eventually causes the stoma to open.
B) A large bubble of oxygen accumulates below the stoma and eventually causes it to open.
C) Two guard cells flanking each stoma change shape to open or close the stoma.
D) The internal pressure of xylem sap expands the leaf, stretching the stoma open.
Correct Answer:
Verified
Correct Answer:
Verified
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