Ch 18: MTLE Life Science: Evolutionary Relationship Between Species

About This Chapter

The lessons of this chapter have been composed to help you study for questions on the MTLE Life Science exam regarding the evolutionary relationship among species.

MTLE Life Science: Evolutionary Relationship Between Species - Chapter Summary

In these lessons you will watch our expert instructors as they discuss with you key subject matter pertaining to the evolutionary relationship amid species. These lessons are mobile device compatible so that you may have a versatile and portable way to prepare for MTLE Life Science exam questions about:

  • Kinds and features of fossils
  • The fossil record
  • Phylogenic trees
  • Forms of relative dating
  • Convergent evolution
  • Artificial selection

To reinforce your retention of the information being presented in these lessons, read the lesson transcripts, and then take the lesson quizzes to discover the topics you don't understand. After these short assessments, you can improve your understanding of the topics you missed by returning to and reviewing the parts of the lessons that explained them using the video tags.

6 Lessons in Chapter 18: MTLE Life Science: Evolutionary Relationship Between Species
Test your knowledge with a 30-question chapter practice test
Fossil: Definition, Types, Characteristics & Examples

1. Fossil: Definition, Types, Characteristics & Examples

Fossils provide scientists with many clues about Earth's history, offering evidence of dinosaurs and strange plants that existed in the past. This lesson will define a fossil, look at different types and characteristics of fossils, and then describe how fossils are formed.

Fossil Evidence for Biological Diversity, Speciation, & Mass Extinction

2. 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.

Phylogenetic Tree: Definition & Types

3. Phylogenetic Tree: Definition & Types

We'll explore the ways taxa are categorized into a visual diagram, known as a phylogenetic tree, as well as what information these 'trees' tell us about the evolutionary relationship between organisms.

Relative Dating with Fossils: Index Fossils as Indicators of Time

4. Relative Dating with Fossils: Index Fossils as Indicators of Time

You may already know how to date a fossil with a rock. But did you know that we can also date a rock with a fossil? Watch this video to find out how we use index fossils to establish the relative ages of rocks.

What Is Convergent Evolution?

5. What Is Convergent Evolution?

It can be difficult to tell whether species are related just by looking at them. Organisms look and act the way they do because of ancestry, but similarities also arise because of similar environmental roles, as is the case with convergent evolution.

Artificial Selection in Evolution

6. Artificial Selection in Evolution

Humans have been selectively breeding for desirable traits in plants and animals for a long time. This artificial selection allows for a lot of control in the breeding process but can also lead to unintended mutations within a population of organisms.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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