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1
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Ability to survive and reproduce
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2
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No longer in existence; that has ended or died out
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3
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The set of all genes or genetic information
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4
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Age of a fossil is determined by finding out absolute age of surrounding rock
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9
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An amount of time
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11
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A long and distinct period of history with a particular feature or characteristic
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12
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Remains or traces of life that hve been preserved over time
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14
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Very small fossils that it can be studied and identified only with a microscope
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15
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Distinctive fossil used to compare relative ages of fossils
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17
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A proposed explanation
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18
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Inherited characteristics that increases on oragnisms chance of survival
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19
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Formation of new and distinct species
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20
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Time over time
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