About This Chapter
The Study of Life On Earth - Chapter Summary
If you need help understanding the study of life on Earth, you'll appreciate this chapter. Its engaging lessons offer in-depth analyses of evolutionary change, the history of life on Earth and much more. After completing this chapter, you will be ready to do the following:
- Share theories and explanations of the origins of life on Earth
- Outline the timeline and characteristics of major eras and periods in Earth's history of life
- Describe the endosymbiosis theory and differences between eukaryotic and prokaryotic cells
- Define and discuss forms of evolutionary change
This chapter features a self-paced format that enables you to choose the lessons you'd like to study one or more times as you seek to comprehend the above concepts. Around-the-clock mobile accessibility makes it easy to study whenever and wherever it best suits your schedule. We offer multiple-choice questions you can access at your convenience to test your understanding of the lessons you review. Your questions can be submitted to our experts via the Dashboard.
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. The Endosymbiosis Theory: Evolution of Cells
Ever wonder why some cells are very simple and others are complex with countless organelles to remember? We will look at how simple cells evolved to become more complex cells - as well as evidence to support this.
4. 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.
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Other chapters within the CLEP Biology: Study Guide & Test Prep course
- Scientific Principles
- Review of Inorganic Chemistry For Biologists
- Introduction to Organic Chemistry
- Cell Biology
- How Enzymes Work
- Basics of DNA & RNA
- Process of DNA Replication
- The Transcription and Translation Process
- Basics of Gene Mutations
- Basics of Metabolic Biochemistry
- Overview of Cell Division
- Plant Biology
- Plant Reproduction and Growth
- Physiology I: The Circulatory, Respiratory, Digestive, Excretory, and Musculoskeletal Systems
- Physiology II: The Nervous, Immune, and Endocrine Systems
- Animal Reproduction and Development
- Biology of Genetics
- Principles of Ecology
- Natural Resources & Environmental Impact
- Speciation & Evolution
- Classification of Organisms Overview
- Social Biology
- Analyzing Scientific Data
- CLEP Biology Flashcards