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BIOS 255 Comprehensive Exam Study Guide Already Graded A
BIOS 255 Comprehensive Exam Study Guide Already 
Graded A 
POSITIVE FEED BACK SYSTEM 
A positive feedback mechanism is the exact opposite of a negative feedback 
mechanism. With negative feedback, the output reduces the original effect of the 
stimulus. In a positive feedback system, the output enhances the original stimulus. A 
good example of a positive feedback system is child birth. 
NEGATIVE FEEDBACK SYSTEM 
A positive feedback mechanism is the exact opposite of a negative feedback 
mechani...