The stimulus responsible for the movement of chhui-mui leaves is touch, also known as mechanical stimuli, which triggers the rapid closing of the leaves.
NCERT Science Textbook Curiosity Science Session 2024-2025.
Which stimulus is responsible for the movement of chhui-mui leaves?
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The movement of chhui-mui (Touch-me-not) leaves is triggered by the stimulus of touch. This plant responds to physical contact through a process called thigmonasty, causing its leaves to fold inward as a defense mechanism against harm.
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