How is this movement different to movement in sensitive plant (touch me not) when it is disturbed.
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Solution
The movement that is shown my mimosa plant when it got touched with a finger is called 'Nastic movement''. Nastic movements are non-directional responses to stimuli and are usually associated with plants. The movement can be due to changes in turgor or changes in growth.
Whereas the movement is shown by the growth of pollen tube to the ovules us a type of chemotropic movement. In this the movement is in direction of the chemical stimuli