In plants, what mainly works instead of a nervous system for control and coordination?
Answer and explanation
Correct answer: Chemical substances and changes in growth
The governing concept is coordination without a specialized nervous system. Plants use chemical messengers such as hormones, together with changes in cell growth, water balance, and turgor, to coordinate responses. Tropisms are common examples in which unequal growth changes direction. Thus option A is correct. Plants do not possess a brain, spinal cord, heart, or animal sensory organs as their central control system.
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What is the correct answer to this question?
Chemical substances and changes in growth
Why is this the correct answer?
The governing concept is coordination without a specialized nervous system. Plants use chemical messengers such as hormones, together with changes in cell growth, water balance, and turgor, to coordinate responses. Tropisms are common examples in which unequal growth changes direction. Thus option A is correct. Plants do not possess a brain, spinal cord, heart, or animal sensory organs as their central control system.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
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