1.      Why do multicellular organisms have material-exchange problems?

2.      List three functions of the liver.

3.      What are the functions of the glomerulus, proximal convoluted tubule, loop of Henle, and distal convoluted tubule?

4.      List three hormones and give their function.

5.      Name the five kinds of taste that humans are able to detect.  What other factors are involved in taste?

6.      Describe the processes that cause about 50% of babies to be born male and 50% to be born female.

7.      What structures are associated with the human male reproductive system?  What are their functions?

8.      How do B-cell and T-cell systems work to defend against disease?

9.      Describe two ways in which the function of the nervous system differs from that of the endocrine system.

10.    Define the term sexuality.

PART II: ESSAY

Directions: Write a 1 page, double-spaced paper in 12 pt. font in response to the following question.  Find one article using AAU’s LIRN (library) to use as support.  Please use APA format.  Please visit the Academic Resource Center for an effective guide on how use LIRN and for concise APA guidelines.

The Circulatory and Respiratory Systems

The circulatory and respiratory systems are very important to our daily living.  Explain why both systems are so important and how they work together.