Unlike animals, plants cannot move to more favorable locations. Instead, plants survive by adjusting their growth to their local environment. A major way this is done is by sensing the directions of environmental signals such as light and gravity. This...

Nastic movements are rapid, reversible responses to non-directional stimuli (eg. Temperature, Humidity, Light irradiance). It is a plants response to touch. Nastic movement is caused by turgor pressure change due to movement of water in cells as opposed...