What is shown by the presence of photoreceptors in eyes and smell receptors in the nose?
Answer and explanation
Correct answer: Different receptors detect different stimuli
Receptors are specialised because their structures respond best to particular forms of stimulation. Photoreceptors in the eye respond to light, whereas smell receptors in the nose respond to chemical molecules that create odours. Comparing these two examples shows that the nervous system uses different receptors for different stimuli. Therefore option B is correct. Option A contradicts receptor specialisation, and C and D wrongly restrict receptors to blood or plants.
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What is the correct answer to this question?
Different receptors detect different stimuli
Why is this the correct answer?
Receptors are specialised because their structures respond best to particular forms of stimulation. Photoreceptors in the eye respond to light, whereas smell receptors in the nose respond to chemical molecules that create odours. Comparing these two examples shows that the nervous system uses different receptors for different stimuli. Therefore option B is correct. Option A contradicts receptor specialisation, and C and D wrongly restrict receptors to blood or plants.
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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