A) photoperiodism
B) phototropism
C) nyctinasty
D) seismonasty
E) None of these
Correct Answer: A
Solution :
Photoperiodism is a biological response to changes in the ratio of light and dark in a 24 hour cycle. It is a light stimulus shown by above ground part of a plant. The movement in stimulus of light or dark is known as nastic movement and this phenomenon is known as nyctinasty.
You need to login to perform this action.
You will be redirected in
3 sec
