1. Homeostasis & Body Systems
The Balance of Life

3. Homeostasis
The body’s ability to maintain stable internal conditions even though the outside world changes constantly. Examples:
Temperature
Blood sugar pH
Nutrients
Waste

5. Negative Feedback
The variable triggers an opposite response to return the body to normal.

6. Negative Feedback Negative feedback loops are self- terminating. Why?
Nearly all feedback in the body is negative. Why do you think that is?

7. Positive Feedback
Stimulus causes a response that increases the stimulus.

8. When does positive feedback end?

9. Body Systems