Feedback is a type of feedback in which a system is triggered to produce an output.

Positive feedback is a type of feedback in which a system is triggered to produce an output.

Positive feedback is a feedback in which the end products of the process (reaction) cause more of that to occur.  

Each feedback loop contains:

•Stimulus-something that disrupts the homeostasis

•Sensor-detects the change

•Control center- responds to the change

•Effector- responds to the stimulus.

The answer is positive.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

the answer to your question is tooth decay.