History Of The Earth Flashcards
0
Q
What are the 4 things needed in order to create life?
A
- Liquid water
- Organic compounds/ materials
- Separating the inside from the outside
- A way to pass on genetic information
1
Q
What are the 4 Era’s of Earth’s History?
A
- Precambrian Era
- Paleozoic Era
- Mesozoic Era
- Cenozoic Era
2
Q
What is the Primordial Soup Hypothesis?
A
Spontaneous Chance at creating life
3
Q
What did the Miller Urey Experiment show?
A
It represented Early Earth and the AA production which provides evidence of the PSH
4
Q
When was the Earth created?
A
4.6 BYA
5
Q
How long was the Precambrian Era?
A
4.6-.545 BYA
6
Q
How long was the Paleozoic Era?
A
.545-.299 BYA
7
Q
How long was the Mesozoic Era?
A
.299-.65 BYA
8
Q
How long was the Cenozoic Era?
A
.65 BYA- Now
9
Q
What happened in the Precambrian Era?
A
All Life was single celled Prokaryotic organisms
10
Q
When did life start?
A
3.6 BYA
11
Q
When did oxygen form?
A
2.4 BYA
12
Q
When did Eukaryotic life exist?
A
1.9 BYA
13
Q
What were the 2 Precambrian Mass Extinctions?
A
- Meteor Strike
2. Climate Shift
