Photonasty is the opening & closing of .......... in response to light.

Stomata

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Gaurd cells

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Flower

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None of these

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Solution

The correct option is C Flower
The non-directional movement of petals of flowers in response to light is called photonasty. For example, a dandelion flower opens in the morning due to bright light and closes in the evening when the light fades. Thus the correct answer is option C.

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Similar questions

The bending of the shoot of a plant in response to light is called :

(a) geotropism

(b) phototropism

(d) photonasty

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