In a research study, one set of subjects received a treatment and another set of subjects received a placebo. This research study is an example of a(n):

1. three hundred fifty texans massacred goliad 2. the president who annexed texas tyler 3. a mission used as a fort san jacinto 4. dictator of mexico sam houston 5. texas william travis 6. commander of the texas army lone star republic 7. where santa anna was captured stephen austin 8. brought more than two thousand people to texas alamo 9. texan commander of the alamo santa anna

The specific department of health and human services (hhs) regulations that apply to research with children are known as: subpart b: additional protections for children involved as subjects in researchsubpart a: the common rulesubpart d: additional protections for children involved as subjects in researchsubpart c: protections for children in research

Which of the following is an executive check on the powers of the judicial branch of government? a. presides over senate during hearing to impeach the president b. enforces term limits for supreme court justices c. nominates supreme court justices and federal judges d. casts tie-breaking vote if the supreme court cannot reach a verdict