Download Evolution Life on Earth Chpt 1

Evolution: The Story of Life on Earth Chapt 1 pg 20-36
1. What is perhaps the most important function of proteins?
2. Summarize Miller and Urey’s research findings.
3. What was probably the first genetic material? What evidence supports this idea?
4. How long were the bacteria the only life form on Earth?
5. How did cyanobacteria cause a major change on Earth?
6. When did Archea and Eukaryotes first appear?
7. Summarize endosymbiosis. What impact did it have on eukaryotes?
8. What evidence supports the endosymbiont theory of eukaryote cell evolution?
9. Why do species usually go extinct if they stop reproducing sexually?
10. What advantage do multicellular organisms have over single-cell organisms?
11. What did the earliest animals on earth look like?
12. Why is having a brain and sense organs at the front of an animal an evolutionary advantage?