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How do plants respond to stimuli such as light, water, gravity, and touch?

Answer and explanation

Correct answer: By growth or movement

Plants lack a brain, nerves, and a blood circulatory system like animals, but they can still sense and respond to stimuli. Plant hormones and changes in cell growth or water balance produce directional growth, such as shoots bending toward light or roots growing with gravity. Some parts also show movement. Therefore option A is correct; B, C, and D describe animal mechanisms that plants do not use.

Related tags

Plant ResponsesStimuliTropismPlant HormonesControl And CoordinationScienceClass 10 Mcq

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