Acurrent conductor used to direct the current from the appliance to the client's skin is called a(n):

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.

One of the reasons that stars are so large is because

Cells control gene expression at which steps