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All of the images and the majority of text content are copyrighted content intended for
educational purposes only.  Below are referrences for this material.
Bjork, Warren B., Ruth D. Horn, William D. Schraer, Hebert J. Stoltze.    Biology: The study
of life - Laboratory manual 5th ed.
Massachusets:    Prentice Hall, 1993.

Campbell, Neil A., and Jane B. Reece, and Lawrence G. Mitchell.      
Biology 5th ed. New York: Benjamin/Cummings, 1999.

Freeman, Scot, and Jon C. Herron.
Evolutionary Analysis 2nd ed.,           New Jersey:
Prentice Hall, Benjamin Cummings, 1999.

Levin, Joseph, and Kenneth R. Miller.
Biology. New Jersey: Prentice        Hall, 2002.

Levin, Joseph, and Kenneth R. Miller.
Biology. New Jersey: Prentice   
Hall, 2004.

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