[Campbell Biology P.1055] Which of the following best distinguishes positive feedback from ne... | Practice Question
Which of the following best distinguishes positive feedback from negative feedback in biological systems, based on the provided text?
A: Positive feedback restores a preexisting state, while negative feedback reinforces a stimulus.
B: Negative feedback dampens a stimulus, whereas positive feedback reinforces a stimulus.
C: Both positive and negative feedback mechanisms always lead to stable homeostatic conditions.
D: Positive feedback is exclusively involved in hormone secretion, while negative feedback regulates blood glucose.
E: Negative feedback is rare in hormone pathways, unlike positive feedback.
Explanation
The text explicitly states: 'Whereas negative feedback dampens a stimulus, positive feedback reinforces a stimulus, driving a process to completion.' This accurately distinguishes the two mechanisms.