Cellmates: Radiolab - http://www. radiolab. org/story/cellmates/ 1:45 - 22:50 1. What is mystery #2?

2. What is the energetic canyon? Give three examples of problems.

3. What is the theory?

4. Why didn’t the smaller prokaryote get eaten?

5. What does the cell get in return for keeping the prokaryote alive?

6. What organelle is this ancient prokaryote?

7. How did the prokaryote help create multicellular organisms?

8. How do we know this is how it happened?

9. How did cooking affect the development of humans?

10. What will life most likely be like on other planets? Why?