Why can development of a reflex arc be considered useful for organisms?
Answer and explanation
Correct answer: It gives a very quick protective response to dangerous stimuli
The governing concept is rapid protective action through a reflex arc. A reflex arc provides a short pathway from receptor to sensory neuron, relay centre, motor neuron, and effector, allowing the body to respond before conscious thinking is complete. This reduces injury from heat, pain, or sudden danger. Hence option A is correct. The other options describe unrelated or impossible effects and do not explain the survival value of reflexes.
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What is the correct answer to this question?
It gives a very quick protective response to dangerous stimuli
Why is this the correct answer?
The governing concept is rapid protective action through a reflex arc. A reflex arc provides a short pathway from receptor to sensory neuron, relay centre, motor neuron, and effector, allowing the body to respond before conscious thinking is complete. This reduces injury from heat, pain, or sudden danger. Hence option A is correct. The other options describe unrelated or impossible effects and do not explain the survival value of reflexes.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Reflex action.
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