A) thigmotropism
B) seismonasty
C) heliotropism
D) diageotropism
Correct Answer: A
Solution :
The contact or touch stimulus induced growth movement is called thigmotropism e.g., winding of tendril, twisting of twiner around a solid support. When the tip of tendril comes in contact with solid object having uneven surface, it coils around the support.
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