Answer:
Observational study
Explanation:
An observational study is a type of study in which individuals are observed and certain measures are measured but there's no intend to affect the actual outcome. In other words, no treatment is given to the individuals and there's no intervention done by the researcher.
In this example, the study aims to evaluate the percent of adults whose right cerebral hemisphere is larger than the right hemisphere. 20 people come and have their brains scanned. Then, the scan is analyzed to identify which hemisphere is larger.
In this study, we can see how <u>individual's brains were observed and some measures were taken but there was no treatment given to them</u> (the researchers were only interested in knowing which hemisphere was bigger).
Thus, this is an example of observational study.
The correct answer is Yellowstone - b . Yellostone National Park is placed on the borders of Wyomming, Montana and Idaho, and is home to the species above.
Answer:
A. regulation of the railroad industry
Answer:
four-month lame duck period between the election and inauguration of the president.
Explanation:
"lame duck" session of Congress is one that takes place after the election for the next Congress has been held, but before the current Congress has reached the end of its constitutional term.
Congressional elections were generally held on the same day. The result of these scheduling decisions was that there was a long, four-month lame duck period between the election and inauguration of the president.
Answer:
b.) It includes value from leisure.