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    Campbell Biology in Focus
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    Exam 31: Plant Responses to Internal and External Signals
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    Why Do Coleoptiles Grow Toward Light
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Why Do Coleoptiles Grow Toward Light

Question 46

Question 46

Multiple Choice

Why do coleoptiles grow toward light?


A) Auxin is destroyed by light.
B) Gibberellins are destroyed by light.
C) Auxin synthesis is stimulated in the dark.
D) Auxin moves away from the light to the shady side.

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