Chapter 20, Problem 3RQ

_________ controls are inherent to an organ, whereas _________ controls are regulatory mechanisms initiated outside an organ that alter the activity of the organ.

Describe how the body’s mechanisms maintain homeostasis?

In______, physical and chemical aspects of the body are being kept within tolerable ranges by body are being kept within tolerable ranges by controlling mechanisms. a. Positive feedback b. Negative feedback c. Homeostasis d. metastasis

_______ is a state in which an organisms internal environment is maintained within a tolerable range.

The bodys internal environment consists of______. a. blood plasma b. interstitial fluid c. the five body cavities d. both a and b.