Biology for IGCSE & O level - Coordination And Response (Section 9 - No. 32)
What is the correct sequence in a negative feedback loop?
Stimulus -> Receptor -> Effector -> Response
Receptor -> Stimulus -> Response -> Effector
Stimulus -> Effector -> Receptor -> Response
Response -> Effector -> Stimulus -> Receptor
Explanation
The correct order is: Stimulus -> Receptor -> Effector -> Response.
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