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Q 1/10
Score 0
It is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called eons, eras, periods, epochs, and ages.
30
Geologic Time Scale
Stratigraphy
Radiometric Dating
Geologic Time Relevance
Q 2/10
Score 0
Current geologic eon in the geologic timescale marked by the abundance of
animal and plant life forms.
30
Paleozoic Eon
Mesozoic Eon
Hadean Eon
Cenozoic Eon
10 questions
Q.
It is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called eons, eras, periods, epochs, and ages.
1
30 sec
Q.
Current geologic eon in the geologic timescale marked by the abundance of
animal and plant life forms.
2
30 sec
Q.
It is defined as descent with modification from a common ancestor
3
30 sec
Q.
It relies on half-life decay of radioactive elements to allow scientists to
date rocks and materials directly.
4
30 sec
Q.
It provides a sequence of events from which relative dates can be extrapolated
5
30 sec
Q.
It allow scientists to use the amount of genetic divergence between
organisms to extrapolate backwards to estimate dates.
6
30 sec
Q.
A change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light.
7
30 sec
Q.
The movement from one region or place of habitat to another.
8
30 sec
Q.
A mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error).
9
30 sec
Q.
The process through which populations of living organisms adapt and change.
