Question

Dandelion flowers open the petals in bright light during the day time but close the petals in dark at night. This response of Dandelion flowers is called ___________.
a) geonasty
b) thigmonasty
c) chemonasty
d) photonasty

Answer 1

HEY MATE HERE IS THE ANSWER....
PHOTONASTY as photo stands for light.
PLEASE MARK IT AS BRAINLIEST......

Answer 2

Dear Student,

◆ Answer - (d)

Dandelion flowers open the petals in bright light during the day time but close the petals in dark at night. This response of Dandelion flowers is called photonasty.

● Photonasty -

• Non-directional movement of plant parts in response to stimulus of light is called photonasty.

# For example -

• During daylight, dandelion flowers will open up.
• During night, dandelion flowers will close.

Thanks dear. Hope this helps you...