What is a boundary in which two plates move apart from each other called?

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

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.

Hybrid instruments that play sounds that are part sampled and part synthesized are known as: