Question
With the help of an example show that plants respond to stimuli.

Answer

The following examples show that plants respond to stimuli:
$(1)$ In some plants like mimosa (touch- me-not) leaves close or fold when we touch them.
$(2)$ Sunflower has the ability to move in response to stimuli towards sunlight to maximize the amount of direct solar radiation received for photosynthesis and growth.
$(3)$ Moon flower and water lily are the flowers that bloom at night only.

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