Question

The directional movement or orientation is part of plant in repone to light is treated
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Answer 1

Thigmotropism is a directional growth movement which occurs as a mechanosensory response to a touch stimulus. Thigmotropism is typically found in twining plants and tendrils, however plant biologists have also found thigmotropic responses in flowering plants and fungi

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Answer 2

Explanation:

The orientation of the plant in response towards light is called Phototropism.

So the correct option is 'Phototropism.'