About This Chapter
Classification of Life Basics- Chapter Summary
This mobile-friendly life science chapter shows you how living things are classified and named. Follow along with our expert instructors to examine the kingdoms and domains of life, as well as taxonomy and the dichotomous key. Each lesson comes with a short quiz to help you see how well you understand these life classification terms and concepts. If you get stuck, simply reach out to our instructors with your questions. The chapter is also available at any time of day or night, which helps you study whenever it's convenient. When you're finished working through the chapter, you should be able to:
- Identify the three domains of life
- Recognize the kingdoms of life
- Understand how taxonomy classifies and names living things
- Evaluate the dichotomous key as a classifying tool
1. The Three Domains of Life
Biology is a rather mysterious thing. How are we related to fish? How can you say we are related to amoebas? We will explore the idea of taxonomy here, sticking with the most generalized concept, the domain.
2. What are the Kingdoms of Life?
In this lesson, we'll be exploring the wide world of living things. Today, you'll learn the largest category for classifying living organisms, the five kingdoms of life. We'll look at what type of organisms are classified in each kingdom and the criteria scientists use to sort them.
3. Taxonomy: Classification and Naming of Living Things
The name you give to a living thing may be completely different than the name someone else uses. In science, we use a common naming system for all living things to avoid confusion. This lesson will explore the basics of our classification system.
4. The Dichotomous Key: A Classifying Tool
Sometimes, the best way to identify an object is to take a step-by-step approach. Dichotomous keys are perfect for this, helping us classify unknown objects through a series of questions and answers that lead us down the correct path.
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