Ch 10: ScienceSaurus Student Handbook Grades 6-8: Change & Diversity of Life

About This Chapter

The Change & Diversity of Life chapter of this ScienceSaurus Grades 6-8 Companion Course helps students learn the essential lessons associated with life diversity and change. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Change & Diversity of Life textbook chapter.

How It Works:

  • Identify the lessons in the ScienceSaurus Change & Diversity of Life chapter with which you need help.
  • Find the corresponding video lessons with this companion course chapter.
  • Watch fun videos that cover the change and diversity topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Biodiversity
  • Comparative genomics
  • Theory of evolution
  • Natural selection
  • Adaptation
  • Extinction

ScienceSaurus is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with Study.com.

5 Lessons in Chapter 10: ScienceSaurus Student Handbook Grades 6-8: Change & Diversity of Life
Test your knowledge with a 30-question chapter practice test
What is Biodiversity? - Definition and Relation to Ecosystem Stability

1. What is Biodiversity? - Definition and Relation to Ecosystem Stability

Imagine making a list of all of the species you have ever heard of; it would be an enormous list! There are many different species on this planet. This lesson will explore the diversity of species, as well as the different types of diversity and how diversity of life is essential for maintaining healthy ecosystems.

Comparative Genomics: Homology

2. Comparative Genomics: Homology

Evolutionary heritage links many modern species by way of a common ancestor. Homology examines the structural similarities between species that reveal their ancestry. Here we will examine the concepts of homology, look at examples, and finish with a brief quiz.

Theories of Evolution: Lamarck vs. Darwin

3. 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.

Natural Selection & Adaptation: Definition, Theory & Examples

4. Natural Selection & Adaptation: Definition, Theory & Examples

How does natural selection help shape the amazing types of animals we witness around us? In this lesson, we'll explore adaptations and what they can tell us about a species' past evolution.

What Is Extinction? - Defining Background and Mass Extinction

5. What Is Extinction? - Defining Background and Mass Extinction

In this lesson you'll discover what the term 'extinction' means as well as learn the two different types of extinction: mass extinction and background extinction. You will also discover how humans contribute to extinction events.

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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Other Chapters

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