1. list three locations in the u. s. where you might find shark teeth.
2. what parts of a shark fossilize other than its teeth?
3. describe one shark from the cenozoic era. what does the shark look like?

Place the steps tor the formation of the enzyme pepsinogen in correct order

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.

What is the correct trna sequence that would match the following mrna sequence.gcgaua