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If a plant grows towards light but its root grows downward in darkness, what does this show?

Answer and explanation

Correct answer: Different parts respond differently to different stimuli

The shoot commonly shows positive phototropism by growing towards light, which improves light capture for photosynthesis. The root commonly shows positive gravitropism by growing downward, helping it anchor the plant and absorb water and minerals. These opposite directional responses demonstrate coordination in plants and show that different organs respond to different stimuli according to their functions. Hence A is correct.

Related tags

Plant-ResponsePhototropismGeotropismControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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