If smell detection is difficult but light and sound detection are normal, what is the best conclusion?
Answer and explanation
Correct answer: Smell receptors or their nerve pathway may be affected
The governing concept is receptor specificity: different sensory receptors and neural pathways detect different stimuli. Normal vision and hearing indicate that the photoreceptors and auditory pathway are functioning, but they do not prove that the olfactory system is normal. Therefore, difficulty in smelling most reasonably suggests damage or dysfunction in smell receptors or their associated nerve pathway. Options B, C, and D involve unrelated or scientifically incorrect explanations.
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What is the correct answer to this question?
Smell receptors or their nerve pathway may be affected
Why is this the correct answer?
The governing concept is receptor specificity: different sensory receptors and neural pathways detect different stimuli. Normal vision and hearing indicate that the photoreceptors and auditory pathway are functioning, but they do not prove that the olfactory system is normal. Therefore, difficulty in smelling most reasonably suggests damage or dysfunction in smell receptors or their associated nerve pathway. Options B, C, and D involve unrelated or scientifically incorrect explanations.
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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