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Feedback Loops

Biology 1-3B

Feedback Loop circular mechanisms that use information about a condition to affect the state of that same condition
stimulus anything that causes a response
receptor monitors a stimulus/ condition and sends information
effector something that responds to signals from a control center
control center uses information about a stimulus to initiate the appropriate response
Negative feedback loop original stimulus causes an opposing response to bring that stimulus back toward the "normal range" or a set point; ie, if high, lowers it; if low, raises it
Positive feedback loop original stimulus causes an amplifying response for that stimulus; ie, if high, goes higher or if low, goes lower.
Created by: strawend