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4 Written questions

4 Multiple choice questions

  1. What was the ancient supercontinents brought on by continental drift?
  2. What involves the horizontal gene transfers between many bacterial and achael lineages?
  3. What are the oldest known fossils, rocklike layers of bacteria and sediment?
  4. According to what, a severe ice age accounted for the limited diversiy and distribution of multicellular eukaryotes?

4 True/False questions

  1. radiometric datingWhat involves the horizontal gene transfers between many bacterial and achael lineages?

          

  2. half-lifeThe first multicellular organisms were what of autonomously replicating cells in which some cells became specialized?

          

  3. three-domain systemWhat are the oldest known fossils, rocklike layers of bacteria and sediment?

          

  4. ribozymesWhat are RNA catalysts that may have been used by RNA molecules to catalyze replication?