Biology for IGCSE & O level - Coordination And Response (Section 5 - No. 31)

Which of the following is the correct pathway of a negative feedback loop?

Stimulus -> Receptor -> Effector -> Response

Response -> Effector -> Receptor -> Stimulus

Stimulus -> Effector -> Receptor -> Response

Receptor -> Stimulus -> Effector -> Response

The correct sequence is: Stimulus -> Receptor -> Effector -> Response.