Question

what is nastic movement

Answer 1

Nastic movements are non-directional responses to stimuli (e.g. temperature, humidity, light irradiance), and are usually associated with plants. Themovement can be due to changes in turgor or changes in growth (therefore K+ ion concentration usually controls such movement in plants). ... Photonasty: response to lig

Answer 2

The non directionL movement which is not in response to stimulus is called nastic movement