Biology, asked by bushhhhhh5114, 1 year ago

what happened to did Dandelion flower during night and during days what is this phenomenon known as

Answers

Answered by naniseathu
1

Answer:

it closes during night

Explanation:

it opens during day and closes during night.it is called as photonasty

Answered by presentmoment
1

Answer:

(a) The dandelion flower opens its petals during the daytime.

(b) Dandelion flower closes its petals during night time.

This phenomenon is called Photonasty.

Explanation:

Photonasty is a type of nastic movement usually seen in plants. It is a non-directional response to stimuli. In other words, the direction in which these movements occur does not depend on the position of the stimulus. Here, the 'frequency of response' depends on the 'intensity of the stimulus'.  

Photonasty is the plant’s response to the presence or absence of light source. In dandelion plants, the flowers open in the 'presence of sunlight' and close in the 'absence of sunlight'.  

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