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Biology AP- 25 history of life on earth > 25.3 geologic record > Flashcards

25.3 geologic record Flashcards

1
Q

wants the geologic record

A

earth’s history

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2
Q

3 eons

A

Phanerozoic, Proterozoic, Archean

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3
Q

Phanerozoic=

A

most of the time animals have existed on earth

pale,mess, and cenozoic

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4
Q

the archean and porterzoic eras lasted for

A

4 billion years

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Biology AP- 25 history of life on earth (16 decks)

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