A65-year-old client with a recent history of head trauma and a long-term history of hypertension presents to the emergency department due to changes in mental status. mri reveals that the client has experienced a subarachnoid hemorrhage. what is the most likely cause of this type of stroke? aneurysm

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.

Anurse is caring for a 42-year-old client who is scheduled for an amniocentesis during the fifteenth week of gestation because of concerns regarding down syndrome. what other fetal problem does an examination of the amniotic fluid reveal at this time?

Which of the following human activities resulted in the growth of the north american deer population?