Question

Deffrentiate tropic and nastic movement

Answer 1

tropic movement:
tropic movement are in form off growth movements of plant.these are of the following types:
1.phototropism
2.geotropism
3.hydrotropism
4.thigmotropism

nastic movement:
movements are due to stimulus of light,temperature or contact but the direction of responce is not determined by the direction of stimuli.

Answer 2

Nastic Movement: "Nastic movements are non-directional responses to stimuli (e.g. temperature, humidity, light irradiance). The movement can be due to changes in turgor or changes in growth. Tropism Movement: "A tropism (from Greek, tropos, to turn) is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus.