Question

Why tropic movement are mostly irreversible?

Answer 1

Answer:

there is directional growth of a plant, or part of a plant, in response to an external stimulus such as gravity or light. So the direction of the stimulus controls the orientation of growth. ... Most nastic movements are temporary and reversible.

Answer 2

Answer

In tropic movement there is directional growth of plants in responsible to an external stimulas such as gravity or light.So, the direction of the stimulus controls the orientation of growth..

Most nasal movement are temporary and reversible...