1.Why do we need to understand the origin of the universe and solar system? 2.What is the role of gravity the formation of the universe?
3.Why are dwarf planets considered "dwarf"? ​

What evidence is there that convection occurs in earth’s troposphere?

What two fields of study provide the core information that is used to classify organisms?

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.