Q. 35.0( 1 Vote )

i) What happens to the dandelion flower

a) during the daytime?

b) at night?

ii) What is the phenomenon known as?

Answer :


a. During day time dandelion flower opens its petals.

b. During night time it closes its petals.

ii. This phenomenon is known as photonasty i.e. non-directional movements of flowers in response to stimulus of light.

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What is nastic movement?

Tamilnadu Board Science