When a plant grows away form the light source, we call this response ________

positive photo-tropism

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negative phototropism

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neo-tropism

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chemo-tropism

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Solution

The correct option is B
negative phototropism

Growth and movement of plants towards light is known as positive phototropism and movement away from sunlight is known as negative phototropism. Stem shows positive phototropism and root shows negative phototropism.

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