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Answer:
In phototropism a plant bends or grows directionally in response to light. Shoots usually move towards the light; roots usually move away from it. In photoperiodism flowering and other developmental processes are regulated in response to the photoperiod, or day length.
Answer: Auxin is a plant growth hormone that aids in the regulation of shoot development. However, when the amount of sunshine fluctuates, auxin is broken down on the stem's sunny side. Because the dark side has a larger concentration of auxin, the plant cells on that side develop faster and bend toward the light.
Explanation:
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