THE NATS 104 Assigned Readings for Lecture 11 include 

Pruitt, N.L., Underwood, L.S. & Surver, W. "BioInquiry" 1st ed., Wiley (1999)
p. 23-30. 

Dott, R.H., Jr. & Prothero, D.R. "Evolution of the Earth" 5th ed., McGraw-Hill (2001)
p. 93-102.

These are available online as PDF files (URL and password have been
announced in class)
Here's what to do
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  - Select Our Class (NATS104 section 12)
  - Enter the PASSWORD that was given in class