The doctor studied the , a thin membrane around the heart. To finish this project, I need to , or work with, Mariel.
Answer
Selection 1:
pericardium
Selection 2:
collaborate

Question

The doctor studied the , a thin membrane around the heart. To finish this project, I need to , or work with, Mariel.

Revolt · Accepted Answer

pericardium; Selection 1: pericardium; Selection 2: collaborate

Reflecting on World War I