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Tell me 2 Nastic movement |
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Answer» Thigmonasty, Photonasty Two nastic movements are -photonasty and thigmonasty The directionless movements of plants caused due to the external variations in the environment are termed as nastic movements.Various types of nastic movements are:i. Seismonsatic movements: The movement of a plant or its part in response to touch or any kind of shock. Example - the folding or drooping of leaves of ‘touch-me-not’ plant.ii. Nyctinastic movements: The movements of plants that occur in response to the presence or absence of light (photonastic movements) or variation in temperature (thermonastic movements). |
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