Why does alcohol cause mood swings ?

In this model, what do p, s, and a bases represent?

During polarization,potassium has a blank charge,sodium has a blank ch arge ,and calcium has a b l ank. charge

When a researcher debriefs her participants, she: provides a detailed explanation of the study. removes their undergarments. tells them they can stop taking part at any time. provides an detailed explanation of the study, and tells them they can stop taking part at any time.