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AP®︎/College Biology

Lesson 4: Feedback

Feedback

AP.BIO: ENE‑3 (EU), ENE‑3.A (LO), ENE‑3.A.1 (EK), ENE‑3.B (LO), ENE‑3.B.1 (EK), ENE‑3.C (LO), ENE‑3.C.1 (EK)

Which of the following correctly describes how positive and negative feedback are different?

(Choice A)
Negative feedback requires the detection of stimuli, while positive feedback functions independently of stimuli.
(Choice B)
Positive feedback moves a system closer to its set point, while negative feedback moves a system further from its set point.
(Choice C)
Positive feedback occurs only in response to stimuli, while negative feedback can occur in the absence of stimuli.
(Choice D)
Negative feedback reverses changes in a system, while positive feedback amplifies changes in a system.

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