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High School Biology: From the First Organism Onward - Earth Forms and Life Begins
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High School Biology: From the First Organism Onward - Earth Forms and Life Begins
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12 Questions

1. LUCA
2. The main difference between relative dating and absolute dating is that
3. DNA sequence comparison demonstrates that humans are most closely related to
4. Much of what we know about the history of life on Earth is based
5. A molecular clock uses ____________ to estimate how long it has been since related species diverged from a common ancestor.
6. During the early years of the planet, Earth
7. The RNA world hypothesis states that RNA may have been the first organic molecule to evolve because
8. The best examples of fossils would be from
9. The endosymbiotic theory
10. The first cells may have been
11. Earth formed ____________ years ago, and life first appeared about ____________ years ago.
12. The geologic time scale divides Earth’s history into divisions that are based on major changes in

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