shortie223 shortie223
  • 17-01-2019
  • Biology
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what first apperead on earth during Precambrian time

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adam15200031
adam15200031 adam15200031
  • 17-01-2019

Precambrian time. Precambrian time, period of time extending from about 4.6 billion years ago (the point at which Earth began to form) to the beginning of the Cambrian Period, 541 million years ago.

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