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Question
Categorise the following under stimulus and response.
Pain in the eye if something falls into it.
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Solution
Stimulus: Something falling into the eye.
Response: Pain in the eye.
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When we touch a hot plate unknowingly, then this heat is sensed by a receptor P present in our fingers. The receptor triggers and impulse in neuron Q which transmits the message to an organ R which is a part of the central nervous system. Here the impulse is passed on to a neuron S which in turn passes it to a yet another neuron T. The neuron T passes the impulse to a tissue U in our arm. The tissue U then contracts and pulls our hand away from the hot plate.
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