4 Written questions
4 Multiple choice questions
- The first multicellular organisms were what of autonomously replicating cells in which some cells became specialized?
- What is used to determine the ages of fossils?
- What was the ancient supercontinents brought on by continental drift?
- What are RNA catalysts that may have been used by RNA molecules to catalyze replication?
4 True/False questions
half-life → What is the number of years it takes for 50% of a radioactive isotope to decay?
snowball earth hypothesis → According to what, a severe ice age accounted for the limited diversiy and distribution of multicellular eukaryotes?
stromatolites → What are the oldest known fossils, rocklike layers of bacteria and sediment?
genetic annealing → What involves the horizontal gene transfers between many bacterial and achael lineages?