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JohanaT16 JohanaT16
wrote...
Posts: 519
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6 years ago
What may have been a site for the synthesis of organic molecules on the early Earth with its source of hot water and metal ions from rocks?
 
  a. dried-out mud flats
  b. stratified mica crystals
  c. deep sea hydrothermal vents
  d. the bottoms of tidal pools
  e. pockets in lava beds

Question 2

Four of the five answers below are traits that are signatures of a eukaryotic cell fossil. Select the exception.
 
  a. complex patterns
  b. small cell wall diameter
  c. biomarker such as steroids
  d. large size
  e. cell wall with spikes
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Replies
wrote...
6 years ago
Answer to q. 1

c

Answer to q. 2

b
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