Biology Pages
Kimball's Biology Pages: Cladistics
This page discusses how the cladistic level of classification includes information from molecular biology to establish evolutionary relationships. The page discusses how this information is used to do this.
CK-12 Foundation
Ck 12: Life Science: 11.9 Organization of Living Things
Learn the system that scientists use to classify living things.
George Washington University
George Washington University: Basics of Cladistic Analysis [Pdf]
This is an advanced level review of cladistic theory and methodology. Some sections are very dense but there are useful sections for teachers and students seeking a better understanding of the topic.
Estrella Mountain Community College
Online Biology Book: The Nature of Science and Biology
Use the scientific reasoning and critical thinking to take an in-depth look at the basics of biology.