video1.0<iframe src="https://www.loom.com/embed/daa017ac0b624b7e886646f1d45ccce6" frameborder="0" width="1038" height="778" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>7781038Loomhttps://www.loom.com7781038https://cdn.loom.com/sessions/thumbnails/daa017ac0b624b7e886646f1d45ccce6-00001.jpg213p: The primary purpose of the passage is to a: present the background of a medical breakthrough. ; evaluate the research that led to a scientific discovery. ; summarize the findings of a long-term research project. ; explain the development of a branch of scientific study. ;