In the lesson, you learned about different intertidal zones that exist due to the tidal effect of the sea. In this activity, you will choose four species that live in the intertidal zone and describe them, discussing their biological adaptation to the specific features of the particular intertidal zone they inhabit.

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.