Sunflowers open the petals in bright light during the day time but close the petals in dark at night. This response of sunflowers is called ……………………
A. geonasty
B. thigmonasty
C. chemonasty
D. photonasty
Answer:D
Sunflowers open the petals in bright light during the day time but close the petals in dark at night. This response of sunflowers is called ……………………
A. geonasty B. thigmonasty C. chemonasty D. photonasty