Biodiversity flourishes in the Phanerozoic Eon Flashcards
1
Q
What main changes in Life occurred during the Proterozoic Eon?
A
Multi-Celled Organisms started to form and sexual reproduction started.
2
Q
Why was Sexual Reproduction important for life?
A
It allowed for much more variation in Organisms.
3
Q
What was a very important result of the Oxygen Buildup?
A
The Ozone Layer formed (Ozone is O3).
4
Q
Why is the Ozone Layer so important for Life?
A
It protects life forms from Ultraviolet Radiation and more.
5
Q
When did Life “colonize” the Earth?
A
At the very end of the Proterozoic Eon.
6
Q
What is the Phanerozoic Eon?
A
The combination of the Paleozoic, Mesozoic, and Cenozoic periods.
7
Q
What is the Cambrian Explosion?
A
A time period of huge plant and organism growth on the Earth.
