UNIT 4

1. He said life could have been generated from the oceans of ancient Earth
4. says it was the first living being in existence (not LUCA)
6. Creates Equal heating so the planet isn’t hot on one side and cold on the other
8. Measuring the small pull planets have on stars
9. An organism that can survive in extreme conditions
10. Precise measurements of stars and planets
13. Using the blocking of a sun’s light from a planet passing in front of it.
14. Places on Earth are similar to other planets, like how a desert can look like Mars
16. Uses antifreeze agents to survive in extreme cold
18. Uses a protective layer to survive in salty conditions
19. needs three things: Energy, Organic molecules, water
20. A planet’s gravity can bend the light from a star

2. Says complex structures can be made from noncomplex molecules
3. An exoplanet needs this to protect life from radiation and meteor impacts
5. Uses enzymes to survive in places with high pH
7. Needed to release CO2 and recycle chemicals; small planets also don’t have this
11. Uses proteins to survive in acidic conditions
12. Stabilizes the planet
15. A very detailed telescope can catch the light of exoplanets
17. is about learning how life began, searching for life in space, and finding exoplanets
21. our last common ancestor