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    Biology
  3. Study Set
    Campbell Biology in Focus
  4. Exam
    Exam 31: Plant Responses to Internal and External Signals
  5. Question
    ________ Is Produced in Roots and Moves Up the Plant
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________ Is Produced in Roots and Moves Up the Plant

Question 18

Question 18

Multiple Choice

________ is produced in roots and moves up the plant in xylem sap to influence organ formation.


A) Cytokinin
B) Ethylene
C) Abscisic acid
D) Auxin

Correct Answer:

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