Evolutionary History

Question 1

Atmosphere in early earth

Answer 1

1. No O2
2. High in CO2, methane, and ammonia

Question 1

Steps of life formation

Answer 1

1. Monomer formation
2. Polymer formation
3. Protocells
4. Self-replicating molecules

Question 2

Other early earth conditions

Answer 2

Extreme lightning, UV radiation, and volcanic activity

Question 3

Stromatolites

Answer 3

Rocks built up by ancient photosynthetic prokaryotes

Question 4

Lack of O2 enabled

Answer 4

Organic compound to be randomly synthesized

Question 5

Stanley Miller

Answer 5

Experiment presented theory that organic molecules could have arisen spontaneously

Question 6

What created polymers before synthesizing enzymes

Answer 6

Heat

Question 7

Protocells

Answer 7

Prehistoric clay mixed with lipids to form bilayers

Question 8

Self-replicating cells

Answer 8

RNA strands in cells

Question 9

Macroevolution

Answer 9

Evolutionary change above species level