Copyright

Ch 3: Geologic & Natural Evidence for Evolution

About This Chapter

You can use the lessons in this chapter to learn more about using geologic and fossil records to support the theory of evolution. Whether you are studying for a biology examination or have an interest in understanding how geology and biology interrelate, you are in a great place to explore these concepts.

Geologic Natural Evidence for Evolution - Chapter Summary

When learning about evolutionary biology, students will want to understand the geologic framework that supports the theory of evolution. This chapter provides information regarding the various methods used to date the earth, fossil records, and evolutionary relationships. These informative lessons, break key concepts down into short pieces, enabling you to grasp the information quickly. With the ability to learn using any device, you can study anywhere. When you've finished reviewing this chapter, you will be able to:

  • Describe how scientists date the planet using geological layers and radioactive dating
  • Tell why the age of the earth supports the theory of descent with modifications
  • Identify how fossils can tell us about changes in the environment
  • Examine different types of natural selection
  • Understand evolutionary and phylogenic trees
  • Recognize the process of convergent evolution

8 Lessons in Chapter 3: Geologic & Natural Evidence for Evolution
Test your knowledge with a 30-question chapter practice test
Using Geological Layers & Radioactive Dating to Determine the Earth's Age

1. Using Geological Layers & Radioactive Dating to Determine the Earth's Age

If you want to know how old a person is, you ask them. If you want to get an idea about a tree's age, you count its rings. But what if you want to know the age of the Earth? In this lesson, we'll get an idea of how scientists date our planet.

Age of the Earth as Evidence for Evolution

2. Age of the Earth as Evidence for Evolution

In this lesson, we'll be looking at the age of the Earth. We'll learn what evidence scientists have for the accurate dating of the age of the Earth as well as how this provides evidence for evolution.

Using Fossil Evidence to Evaluate Changes in Environment & Life Conditions

3. Using Fossil Evidence to Evaluate Changes in Environment & Life Conditions

How can something that died tens of millions of years ago help people in the present day understand the past? In the case of fossils, these long-dead specimens can be perfect clues for figuring out changes in environment and life conditions.

Fossil Evidence for Biological Diversity, Speciation, & Mass Extinction

4. Fossil Evidence for Biological Diversity, Speciation, & Mass Extinction

One of the best sources of evidence we have for evolution is the fossil record. Fossils provide a wealth of information on how species change over time and for exciting events like mass extinctions and new species formation.

Natural Selection: Definition, Types & Examples

5. Natural Selection: Definition, Types & Examples

We'll take a look at the types of natural selection that can occur. From flying hamsters to moths, you'll start to grasp the different paths organisms can take as they respond to their changing environments over time.

Evolutionary Relationships: Definition & Diagram

6. Evolutionary Relationships: Definition & Diagram

Just like you can build a family tree to show the relationships of your ancestors and their descendants, scientists can build trees to show the evolutionary relationships of species. In this lesson, learn how to interpret these evolutionary trees.

Maximum Parsimony & Likelihood Methods in Phylogeny

7. Maximum Parsimony & Likelihood Methods in Phylogeny

How are living things related? That's the question behind phylogeny. In this lesson, we are going to explore the concept of phylogeny as well as scientists create phylogenetic trees of life and test their accuracy.

Convergent Evolution: Examples & Definition

8. Convergent Evolution: Examples & Definition

Can you tell whether species are related by looking at them? Organisms look and act the way they do because of various evolutionary processes. Convergent evolution can provide both insight and issues when studying relationships and structural similarities.

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

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Support