1. WARM UP On paper you will :
Describe what you learned from the gizmo yesterday.
Define homeostasis in your OWN words.

2. Feedback Loops Positive vs. Negative

3. Feedback Loop Definition
Channel or pathway formed by an 'effect' returning to its 'cause' and generating either more or less of the same effect.

4. Positive Feedback
In a positive feedback system, the output enhances the original stimulus.
It keeps going

5. Negative Feedback
With negative feedback, the output reduces the original effect of the stimulus
It stops the action