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Rader, Andrew. "Biology4Kids.com: Animal Systems: System Regulation." Rader's BIOLOGY 4 KIDS.COM. Web. 16 Dec. 2011. <http://www.biology4kids.com/files/systems_regulation.html>.
"a relatively stable state of equilibrium or a tendency toward such a state between the different but interdependent elements or groups of elements of an organism, population, or group" Merriam-Webster, 2011.
The digestive system is responsible for the transport of foods and nutrients that supply our body with energy.
A change occurs in the body, and the body tries to stop, or reverse the change. Ex. Blood Pressure.
Our bodies naturally seek homeostasis, as it is required for a healthy state. Unbalance in our bodies would lead to internal and external damage, plus the opening up to disease and sickness.
"Digestive System And Endocrine." Upload & Share PowerPoint Presentations and Documents. Web. 16 Dec. 2011. <http://www.slideshare.net/gueste8aa65/digestive-system-and-endocrine>.
A change occurs in the body, and the body increases
or supports the change. Ex. Blood Clotting
Biology: A Human Approach. 2nd ed. Colorado Springs: BSCS, 2003. Print.
Positive feedback-
- The inactive enzyme Pepsinogen is converted to pepsin to help degrade proteins. The body pushes the production of the enzyme as needed for digestion.
Negative feedback-
-When the body is done digesting food, acid is no longer needed. The body uses hormones and nervous impulses to activate the acid creation as needed.