-------------------- 4.1 - Darwin and Evolution --------------------
4.1.1 - Darwin in History

Overview Historical Setting Darwin's Theory

Evidence for Evolution Summary
4.1.2 - Mechanisms of Evolution

Overview Population Genetics Genetic Change

Preserving Diversity Summary
4.1.3 - Population Genetics

Overview Hardy-Weinberg rh Factor Allele
Theorem Frequency

hbs Allele Frequency Summary
-------------------- 4.2 - Origins of Species --------------------
Origins of Species

Introduction
4.2.1 - Speciation

Overview Barriers Types of Speciation

Hybrid Zone Rate of Speciation Summary
--------------- 4.3 - Taxonomy and Classification ---------------

Introduction
4.3.1 - Systematics

Overview Naming Organisms Phylogenetic Trees

Modern Taxonomy Molecular Differences Summary
4.3.2 - History of Life

Lesson Text
-------------------- 4.4 - Microorganisms --------------------
Introduction
4.4.1 - Viruses
| 4.4.2 - Prokaryotes and Eukaryotes |

| 4.4.3 - Unicellular Eukaryotes |
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