Shock movements of leaves of sensitive plant, Mimosa pudica, show
A
Hydrotropism
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B
Seismonasty
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C
Chemonasty
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D
Thermonasty
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Solution
The correct option is B Seismonasty Movements of a plant or its parts in response to stimuli, irrespective of the direction of the stimuli are termed as nastic movements.
Seismonasty is a type of nastic movement which takes place in response to touch or vibration.
For example, shock movements of leaves of Mimosa pudica leads to drooping of leaves. It is a response to vibration and is an example of seismonasty.