Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
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Chapter 24, Problem 2TYU

Fossilized stromatolites

  1. A.    more than 2.8 billion years old have not been discovered.
  2. B.     formed around deep-sea vents.
  3. C.     resemble structures formed by bacterial communities that are found today in some shallow marine bays.
  4. D.    provide evidence that photosynthesis was occurring in the oceans by 2.5 billion years ago.
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Chapter 24 Solutions

Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)

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