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Intro to the Origin & History of Life On Earth - Chapter Summary
If you're preparing for an upcoming exam, check out this helpful chapter on the history and origin of life on Earth. You'll watch short videos on theories about the start of life and major eras in Earth's history. Once you complete this chapter, you should be ready to:
- Define evolutionary change
- Detail the evolution of prokaryotes
- Explain the evolution history of protists
- Identify the characteristics of plants and fungi
- Discuss the importance of evolution of animals
- Outline the characteristics of human evolution
- Provide scientific evidence that supports evolution
- Define mass extinction
The lessons clearly outline these topics, and you can work through them at your own pace and convenience. Each video is easy to navigate using the timeline feature. We've taken the stress out of studying by providing access to our subject experts if you have any questions.
1. The Origin of Life on Earth: Theories and Explanations
Ever wonder how living things came from non-living things? We will explore what conditions on early Earth may have created life from non-living items.
2. The History of Life on Earth: Timeline and Characteristics of Major Eras
The Earth is over 4.6 billion years old. Ever wonder what happened during certain time periods in that large amount of time? We will look at the major eons and eras of Earth's history along with important characteristics of each.
3. Evolutionary Change: Definition and Forms
You've probably heard of Charles Darwin and evolution. We know that evolution is change over time, but here we will look at how these changes may have occurred during Earth's history.
4. 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.
5. 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.
6. 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.
7. 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.
8. 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.
9. Scientific Evidence That Supports Evolution
Evolution explains how species that are present on Earth today are modified descendants of their ancestors. This scientific theory is supported by many different types of evidence, which show how evolution is a very real and natural phenomenon.
10. 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.
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Other chapters within the NES Middle Grades General Science (204): Practice & Study Guide course
- Introduction to Scientific Inquiry
- Historical Development of Scientific Laws & Theories
- Overview of Science & Society
- Intro to Matter
- Atomic Structure in Chemistry Basics
- Trends of the Periodic Table
- Nuclear Processes
- Intro to Chemical Bonds
- Overview of Types of Reactions in Chemistry
- Equilibrium in Chemistry Basics
- Reaction Rates in Chemistry
- Energy Forms and Transformations
- Electricity & Magnetism Basics
- Force, Mass & Motion
- Overview of Waves, Sound & Light
- Cell Characteristics, Organization & Processes
- Organism Classification & Phylogenesis Basics
- Animal Reproduction and Development
- Male Reproductive System
- Female Reproductive System
- Physiology I: The Circulatory, Respiratory, Digestive, Excretory, and Musculoskeletal Systems
- Physiology II: The Nervous, Immune, and Endocrine Systems
- Plant Biology
- Plant Reproduction and Growth
- Requirements of Biological Systems
- Basic Genetic Principles
- Biomes & Ecosystems
- Understanding Earth's Spheres & Internal Structure
- Time & Dating in Geology
- The Lithosphere
- Rocks & Minerals
- Weathering, Erosion & Wasting Basics
- Geological Forms
- Hydrosphere Properties & Characteristics
- Overview of Atmosphere, Weather & Climate
- Intro to the Solar System & the Universe
- NES Middle Grades General Science Flashcards