Citations

Audesirk, T., & Audesirk, G. (1999). Biology: Life on earth (5th ed.). Upper Saddle river, New Jersey: Prentice Hall.

Male reproductive system. (n.d.). Retrieved July 3, 2015.

The female reproductive system. (2009, January 10). Retrieved July 1, 2015.

The human reproductive system. (n.d.). Retrieved July 2, 2015.

What is ovarian cancer? (n.d.). Retrieved June 3, 2015