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Lesson summary for...
It takes teamwork: How endosymbiosis changed life on Earth
Author/Source: UC Museum of Paleontology |
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| Overview: | You might be surprised to learn that descendents of an ancient bacterium are living in every cell of your body! Find out how endosymbiosis factored into the evolution of your own cells. |
| Concepts: | This lesson covers the following concepts:- Biological evolution accounts for diversity over long periods of time.
- Through billions of years of evolution, life forms have continued to diversify in a branching pattern, from single-celled ancestors to the diversity of life on Earth today.
- Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
- Life on Earth 3.8 billion years ago consisted of one-celled organisms similar to present-day bacteria.
- The early evolutionary process of eukaryotes included the merging of prokaryote cells.
- There are similarities in the cell function of all organisms.
- Science does not prove or conclude; science is always a work in progress.
- The story of the evolution of living things is always being refined as we gather more evidence.
- Our understanding of life through time is based upon multiple lines of evidence.
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| Grade Level: | 9-12 |
| Time: | 30-40 minutes |
| Teacher Background: | Explore these links for additional information on the topics covered in this lesson: |
| Teaching Tips: | Additional in-class discussion may enhance student learning based upon this article. Key questions at the beginning of the article could be used to stimulate discussion. |
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