Geologic History and the Evolution of Life (Vocabulary (Eon (Longest unit…
Geologic History and the Evolution of Life
Longest unit of geologic time.
A subdivision of eon.
A subdivision of era.
Subdivision of period.
An extinction of many species on earth within a short period of time.
What connects two previously separated continents.
The separation of a certain type of species due to some physical barrier.
How was the geologic timescale developed?
They choose the time boundaries based on what they observe in the rock's layers .
What are some causes of mass extinction?
Super volcano, nuclear winter, meteor
How is evolution affected by environmental change?
To live, animals have to adapt/ evolve to any environmental change and if they don't manage to do that, that species becomes extinct.