What are some ways people in Everglades are getting rid of Burmese Pythons?

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.

Which of the following explains why a tree is often used as a model to represent the principle of common descent

Which structure in the cardiovascular system connect arteries to veins?