An organism’s response to an external or an internal stimulus is known as its behavior. Plant movement is one of the examples of plant behaviour. The plants respond to light, gravity, and sometimes touch. The phenomenon of a plant growing in the direction of light is known as phototropism. Plant cells detect light with the help of photoreceptors.

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Chapter 36, Problem 6TY

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Introduction: An organism’s response to an external or an internal stimulus is known as its behavior. Plant movement is one of the examples of plant behaviour. The plants respond to light, gravity, and sometimes touch. The phenomenon of a plant growing in the direction of light is known as phototropism. Plant cells detect light with the help of photoreceptors.

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