How are gravity and mass related? A. Greater mass causes lower gravity.
B. Greater mass causes higher gravity.
C. Lower mass causes lower gravity.
D. Lower mass causes higher gravity.

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 noticeable trend from this graph might be used to make a conclusion?

Which of these structures are found in both plant ans animal cells?