Afactor that is necessary for the formation of a new species is

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.

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute