Ch 25: Biotic & Abiotic Factors

About This Chapter

In this overview of biotic and abiotic factors, you can review ecosystems, biological diversity, and food chains. The short lessons in this chapter can be a valuable tool to use when preparing for a test or working on class assignments.

Biotic & Abiotic Factors - Chapter Summary

In this chapter on biotic and abiotic factors, our mobile-friendly platform helps you review the various factors that come into play in ecosystems. Additionally, you will take a look at how people use decomposers. Upon completion of the chapter, you should be able to:

  • List the components of an ecosystem
  • Define biotic factor and related terminology
  • Provide examples of abiotic factors of an ecosystem
  • Explain how energy flows through an ecosystem
  • Recall the role decomposers play in the environment
  • Discuss the types of forests found on the earth

Our subject-matter experts present these topics in a way that is easy to understand. If you find yourself struggling with a topic, you can use the Help feature to submit questions to the instructors. A short quiz is available to test your understanding of each lesson, and the quizzes can also be printed for offline study.

6 Lessons in Chapter 25: Biotic & Abiotic Factors
Test your knowledge with a 30-question chapter practice test
What Is an Ecosystem? - Definition & Explanation

1. What Is an Ecosystem? - Definition & Explanation

Similar to a car engine that is made up of multiple parts working together, an ecosystem has interacting parts that support a whole. But how do we define an ecosystem and what are the components they consist of?

Biotic Factor: Definition & Examples

2. Biotic Factor: Definition & Examples

This lesson focuses on the meaning of the term 'biotic factor.' It also introduces other terminology such as the words 'abiotic' and 'ecosystem'. There are real-world examples embedded in the lesson, and a brief quiz follows.

Abiotic Factors of an Ecosystem: Definition & Examples

3. Abiotic Factors of an Ecosystem: Definition & Examples

When it comes to ecosystems, a mountain, a river, and a cloud have more in common than you might think. Abiotic factors have specific and important roles in nature because they help shape and define ecosystems.

Food Chains, Trophic Levels and Energy Flow in an Ecosystem

4. Food Chains, Trophic Levels and Energy Flow in an Ecosystem

In this lesson, you'll learn about food chains, food webs, and the different roles that organisms play in an ecosystem. You'll also learn about how energy flows through an ecosystem.

What is a Decomposer? - Definition & Examples

5. What is a Decomposer? - Definition & Examples

Decomposers are an often overlooked part of the natural world, but their job is an important one. Learn what decomposers are, what role they have in the environment and how people use them.

Biological Diversity and the Forest: Ecosystems of the Rainforests and Temperate Forests

6. Biological Diversity and the Forest: Ecosystems of the Rainforests and Temperate Forests

In this lesson, you'll learn about three main types of forests found on earth: coniferous, deciduous and tropical rainforests. You'll also discover how the ecosystems where these trees are located affect the biodiversity within them.

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