Please help me I’ve started to cry I can’t do this it’s so hard

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.

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?

Explain why autonomous underwater explorers (aue) will provide entirely new kinds of information about ocean processes