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Chapter 25: All

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Biology Homework Chapter 25: Internal Regulation and Homeostasis


Textbook assignment: Chapter 25: Control of the Internal Environment, all.

Study Notes

This chapter focusses on ways that animals minimize change within their bodies. Most metabolic functions take place within narrow limits of temperature, acidity, and concentrations of salts or other molecules like CO2 or nitrogenous wastes. Large deviations from these "norms" waste energy, and can lead to systemic problems, sickness, and death if they are not corrected.

Web Lecture

Read the following weblecture before chat: Osmoregulation

Take notes on any questions you have, and be prepared to discuss the lecture in chat.

Study Activity

Perform the study activity below:

Use the Homeostasis game at Gizmos to adjust clothing, sweat rate, and water intake to keep body temperature constant while your subject exercises.

Chapter Quiz

Lab Work

Read through the lab for this week; bring questions to chat on any aspect of the lab, whether you intend not perform it or not. If you decide to perform the lab, be sure to submit your report by the posted due date.