Me and my sister zoey ima on the left she is on the right

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.

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird

Collin would like to use the data a coworker has entered in a database. the problem is the coworker's database software is different from collin's. collin should