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.
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What is the correct answer to this question?
By growth or movement
Why is this the correct answer?
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.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Plant hormones.
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