Question

(b) What is the difference between photonasty and thigmonasty?

Answer 1

Photonasty	Thigmonasty
1. The non-directional movement of the plant in response to the light is known as photonasty. 2. Example: The closing of moonflower petals in response to light .	1. The non-directional movement of the plant in response to the touch of an object is known as thigmonasty. 2. Example: The folding of leaves belonging to a sensitive plant in response to touch.