About This Chapter
Classification of Organisms - Chapter Summary and Learning Objectives
This series of video lessons, led by an experienced life science teacher, provides a broad overview of how and why living things are classified. Learn more about a dichotomous key, and how it's used. Describe the evolutionary history of key groups of living things. At the end of this chapter, you should be able to:
- Explain the process of classification and its purpose
- Define a dichotomous key, and explain how it's used
- Summarize the evolutionary history of prokaryotes, protists, plants and fungi, animals, and humans
|Taxonomy: Classification and Naming of Living Things||Define taxonomy and discuss how it's applied to classifying and naming living organisms.|
|The Dichotomous Key: A Classifying Tool||Explain how the dichotomous key is a classifying tool|
|The Evolution of Prokaryotes: Archaebacteria and Eubacteria||Describe the evolution of archaebacteria and eubacteria.|
|The Evolution of Protists: Importance and Evolutionary History||Describe the evolutionary history of protists and why it's important.|
|The Evolution of Plants and Fungi: Characteristics and Evolutionary History||Describe the characteristics of plants and fungi; summarize their evolutionary history.|
|The Evolution of Animals: Importance and Evolutionary History||Describe the evolution of animals and their importance.|
|The Evolution of Humans: Characteristics and Evolutionary History||Describe the characteristics of humans; summarize their evolutionary history.|
1. 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.
2. 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.
3. The Evolution of Prokaryotes: Archaebacteria and Eubacteria
The first living organisms on Earth were bacteria. These small organisms still exist today and are responsible for many things. In this lesson, we will explore both ancient bacteria and true bacteria.
4. The Evolution of Protists: Importance & Evolutionary History
Some organisms are very familiar. However, there are some that play vital roles in our lives that we don't even think about. We will look at a group of one of these unfamiliar kingdoms - protists.
5. The Evolution of Plants and Fungi: Characteristics & Evolutionary History
In early classification systems, plants and fungi were grouped together. While there are some similarities between these two kingdoms, there are some key differences that we will explore.
6. The Evolution of Animals: Importance & Evolutionary History
The animal kingdom ranges from simple organisms like sponges to complex organisms like humans. We will look at some defining characteristics of animals as well as examples of both invertebrates and vertebrates.
7. The Evolution of Humans: Characteristics & Evolutionary History
Just like other organisms, humans have changed over time. We will look at the evolution of humans as well as connections with our primate relatives, including Old World and New World primates.
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Other chapters within the Life Science: Middle School course
- Introduction to Life Science
- Characteristics & Chemicals of Life
- The Parts of Cells
- DNA Replication & Mutation
- Cell Division & the Cell Cycle
- How Living Organisms Get Energy
- The Origin & History of Life On Earth
- Genetics & Hereditary Traits
- Genetic Engineering Basics
- Natural Selection & Evolution in Life Science
- Microbiology & Types of Microbes
- Introduction to Ecosystems
- Types of Ecosystems
- Changing Ecosystems
- Birds & Mammals
- Animal Behavior & Communication
- Mammal Reproduction & Development
- The Respiratory System
- The Cardiovascular System
- The Blood Vessels
- The Digestive System
- The Urinary & Endocrine Systems
- The Brain & Nervous System
- The Muscular System
- The Skeletal System & Connective Tissue
- Sight, Hearing & Other Senses
- Health Issues & Concerns
- Plant Biology & Structure
- How Plants Grow & Reproduce
- Environmental Concerns
- Natural Resources
- Earth History & Geologic Time