What sources must health care workers use when deciding which abbreviations and symbols to use on the job? a. Those listed in their textbooks
b. Those approved by the facility in which they work
c. Those listed in medical dictionaries and reference books,
d. Those provided by their professional organization.

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

How do chloroplasts set plants apart from other living things

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.