Homeostasis in Living Things
Biology:   Exploring Life by Campbell, et al.

Use complete sentences that you will construct on your own lined paper to answer the following
questions.

p. 16

1.    Define the term homeostasis.  

pp. 698-699

2.    In a short paragraph or flow chart, explain how temperature homeostasis is maintained in humans.

3.    What is meant by the term negative feedback?

pp. 699-700

4.    What are hormones and where are they produced in humans?

5.    How are hormones carried throughout the body?

6.    What are target cells or target organs?

7.    Explain why only a specific hormone can influence a target cell.

p. 714

8.    List 2 ways insulin lowers blood sugar (glucose) levels.

9.    What disease results when sugar remains at a level in the blood which is too high?

10.  Explain how the direct cause of type I diabetes differs from that of type II diabetes.

p. 715

11.  Where are the adrenal glands that produce adrenaline located?

12.  List 2 physiological effects of the hormone adrenaline.

p. 466

13/14.   Explain the role of guard cells and stomata in controlling water loss in plants
             in a paragraph.