Which two of the following are not characteristics of surveys? O A. The study compares two or more treatments.
B. Data are gathered during the course of the study.
c. Statistical analysis is applied to the results of the study.
D. The study involves one or more treatment groups and a control
group.

In 1912, the imperial system that had ruled over china for thousands of years

Anthony johnson, an african who arrived in virginia in 1621, a. learned the powhatan language and became a translator for governor thomas dale. b. owned slaves. c. translated the king james version of the holy bible into indian and african dialects. d. was the first slave who purchased his freedom with earnings from growing tobacco.

Which is likely the most serious problem associated with an epidemic? 1. there are sometimes no cures to the diseases that spread. 2. people often die from the diseases that spread. 3. there are usually no ways to prevent people from getting ill. 4. people often don’t know they have a disease.