References

Borenstein, S: The Associated Press. (2006). Rat Study Shows Dirty Better Than Clean. Retrieved February 09, 2007, to March 02, 2007, from the World Wide Web: http://abcnews.go.com/Technology/wireStory?id=2085859&page=2

Campbell, N.A. & Reece, J.B. (2002). Biology. San Francisco, CA, USA: Benjamin Cummings.

Campbell, N.A., Mitchell, L.G., & Reece, J.B. (1997). Biology: Concepts & Connections. Menlo Park, California: Benjamin/Cummings Publishing Company.

Duke University. (2006). Wild vs. Lab Rodent Comparison Supports Hygiene Hypothesis. Retrieved February 11, 2007, to April 26, 2007, from the World Wide Web: http://www.dukemednews.org/news/article.php?id=9750

Hadley, C. (2004). Should Auld Acquaintance Be Forgot…. Retrieved February 09, 2007, to March 02, 2007, from the World Wide Web: http://www.nature.com/embor/journal/v5/n12/full/7400308.html

iStock Internationals Inc. (2007). Maple Leaf, Icon of Canada. Retrieved May 2, 2007, from the World Wide Web: http://www.istockphoto.com/file_closeup/flora/plant_life/trees/978692_mapl
e_leaf_icon_of_canada.php?id=978692

Starr, C. & Taggart, R. (2004). Biology: The Unity and Diversity of Life. Belmont, CA, USA: Brooks/Cole—Thomson Learning.

US National Library of Medicine. (2007). Immunoglobulin G (IgG) Retrieved April 12, 2007, from the World Wide Web: http://ghr.nlm.nih.gov/handbook/illustrations/igg;jsessionid=6138EC8B4E2B
77661F25FD81A2EB120E

Wikipedia. (2007). The Immune System. Retrieved February 09, 2007, to March 02, 2007, from the World Wide Web: http://en.wikipedia.org/

References for Pictures

Figure 1.A - Taken from http://www.en.wikipedia.org/

Figure 1.B - Taken from http://www.en.wikipedia.org/

Figure 1.C - Taken from http://www.en.wikipedia.org/

Figure 1.D - Taken from http://www.en.wikipedia.org/

Figure 1.E - Taken from http://www.en.wikipedia.org/

Figure 1.F - Taken from http://www.en.wikipedia.org/

Figure 1.G - Taken from Campbell, N.A. & Reece, J.B. (2002). Biology. San Francisco, CA, USA: Benjamin Cummings.

Figure 1.H - Taken from Campbell, N.A. & Reece, J.B. (2002). Biology. San Francisco, CA, USA: Benjamin Cummings.

Figure 1.I - Taken from Campbell, N.A. & Reece, J.B. (2002). Biology. San Francisco, CA, USA: Benjamin Cummings.

Figure 1.J - Taken from Campbell, N.A. & Reece, J.B. (2002). Biology. San Francisco, CA, USA: Benjamin Cummings.

Figure 1.K - Taken from http://www.en.wikipedia.org/

Figure 1.L - Taken from http://www.en.wikipedia.org/

Figure 1.M - Taken from http://www.en.wikipedia.org/

Background picture - Taken from http://ghr.nlm.nih.gov/handbook/illustrations/igg;jsessionid=6138EC8B4E2B
77661F25FD81A2EB120E

Maple Leaf - Taken from http://www.istockphoto.com/file_closeup/flora/plant_life/trees/978692_mapl
e_leaf_icon_of_canada.php?id=978692

Acknowledgements

Thanks to Chuck Buckley, Shelagh Bannister, Kjell Wooding, and Dr. Edward Pike for edits. As well, thanks to my family for moral and financial support.