A placebo experiment is one that does no harm or good. A lot of the time researchers will have a. placebo group and a another control group with the actual treatment. The key in placebo is that no one knows if they have it or not. C
Because she had a collapsed lung
It is called the nasopharynx.
Answer:
E. First premolar and second premolar
Explanation:
First premolar and second premolars because In the cusp-embrasure occlusal relationship, the maxillary first premolar is most likely to articulate with the first and second premolars.
