Question

difference between thigmonastic and photonastic

Answer 1

Explanation:

Nastic movements differ from tropic movements in that the direction of tropic responses depends on the direction of the stimulus, whereas the direction of nastic movements is independent of the stimulus's position. The tropic movement is growth movement but nastic movement may or may not be growth movement.

Answer 2

They both are the part of Nastic Movement.

Thigmonastic movement - The non-directional movement of a plant part in response to the touch of an object is called Thigmonasty.

Photonastic movement - The non-directional movement of a plant part in raresponse to light is called Photonasty.

Ex-Touch me not plant or Mimosa of Thigmonasty.

Dandelion and Moon flower of Photonasty.

Hopefully it's helpful.