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6 terms

Evolution 2

STUDY
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Anatomy
The study of the structure of an organism
Epoch
A medium sized division in the geologic time scale (tens of millions of years)
Era
A big division in the geologic time scale (several hundred years) made up of periods
Period (Geological)
A small division in the geologic time scale (made up of epochs)
Theory
A proposed explanation of a scientific event
Variation
Difference in members of the same species