A) nyctinastic
B) seismonastic
C) heptonastic
D) photonastic
Correct Answer: B
Solution :
Seismonastic movements are due to the touch, shock, rain, electric .currents, etc. The best example of seismonastic movement is the leaves of sensitive plant Mimosa pudica. In Mimosa pudica (touch me not plant), the movement is produced due to turgor changes in the cells of pulvinus or swollen area lying at the base of petiole pinnae and pinnules.
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