The movement of part of a plant in response to external stimulus of no particular direction is?
Answer Details
The movement of part of a plant in response to external stimulus of no particular direction is called nastic movement. Nastic movements are non-directional responses to stimuli such as touch, vibration, or changes in temperature or humidity. These movements are generally not dependent on the direction of the stimulus, and they occur in response to a wide range of stimuli. Examples of nastic movements include the opening and closing of flowers, the folding of leaves in response to touch or changes in temperature, and the movement of tendrils in climbing plants.