4 Written questions
4 Multiple choice questions
- What is the number of years it takes for 50% of a radioactive isotope to decay?
- According to what, a severe ice age accounted for the limited diversiy and distribution of multicellular eukaryotes?
- What was the ancient supercontinents brought on by continental drift?
- The first multicellular organisms were what of autonomously replicating cells in which some cells became specialized?
4 True/False questions
stromatolites → What are the oldest known fossils, rocklike layers of bacteria and sediment?
serial endosymbiosis → What are aggregates of abiotically produced organic molecules surounded by a membrane?
genetic annealing → Which patterns can be used to date rocks, shwoing when the orientation of Earth's magnetic field reversed?
protobionts → What are aggregates of abiotically produced organic molecules surounded by a membrane?