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Question

Shock movements of leaves of sensitive plant, Mimosa pudica, are

A
Thermonaty
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B
Seismonasty
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C
Hydrotropism
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D
Chemonasty
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Solution

The correct option is B Seismonasty
Nastic movements are responses of plant parts to stimuli. Thermonasty is the a nastic response of plant in response to change in temperature. Thigmonasty or seismonasty is the nastic response of a plant to touch or vibration. Shock movements of leaves of Mimosa pudica leads to dropping of leaves due to seismonasty. Chemonasty is the nastic response of a plant to external chemical.
Thus, the correct answer is option B.

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