Ch 22: The Theory of Evolution

About This Chapter

Examine the evidence and studied processes for the theory of evolution through the lessons in this chapter. Review topics like genetic variability and random mutation and how evolution is used in various branches of biology in these entertaining text and video lessons.

The Theory of Evolution - Chapter Summary

This chapter focuses on the theory of evolution, including what it is and what types of scientific evidence support it. This chapter is easy to understand, with straightforward definitions and explanations. Topics covered in this chapter include:

  • Modern evolutionary synthesis
  • Evidence supporting the theory of revolution from different scientific fields
  • Rates of evolution
  • Genetic variability and random mutation

These lessons are taught by knowledgeable instructors who use an engaging teaching style to ensure a swift and easy learning process. The chapter include text and video lessons as well as quizzes that can help gauge your understanding of the theory of evolution.

5 Lessons in Chapter 22: The Theory of Evolution
Test your knowledge with a 30-question chapter practice test
Theories of Evolution: Lamarck vs. Darwin

1. Theories of Evolution: Lamarck vs. Darwin

We'll look at the interplay between population genetics and environment. Are traits individually acquired or do entire populations evolve? The flying hamsters and a few other notable experiments will provide the answers.

Modern Evolutionary Synthesis: Definition & Formation

2. Modern Evolutionary Synthesis: Definition & Formation

In this lesson, we will discuss the history of evolutionary theory. We will focus on Darwin and Mendel, discussing why some scientists initially believed these two revolutionaries were incompatible, and how these problems were resolved.

Evidence for Evolution: Paleontology, Biogeography, Embryology, Comparative Anatomy & Molecular Biology

3. Evidence for Evolution: Paleontology, Biogeography, Embryology, Comparative Anatomy & Molecular Biology

There is much support for the theory of evolution. This evidence comes from a variety of scientific fields and provides information that helps us trace changes in species over time. In this lesson, we'll look at this evidence and explore how it supports the theory of evolution.

Rates of Evolution: Punctuated Equilibrium & Molecular Clock Hypothesis

4. Rates of Evolution: Punctuated Equilibrium & Molecular Clock Hypothesis

In general, evolution is a very long process. But rates of evolution can be different for different organisms. In this video lesson, you will identify how scientists study rates of evolution and fill in some of the missing 'steps' in the fossil record.

Genetic Variability and Random Mutation

5. Genetic Variability and Random Mutation

Evolution is driven by variation among populations. The amount of variability determines how well a population can adapt to environmental changes, while random mutations can provide new variations that help a population adapt to unexpected changes.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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