Paleontologists perform all of the following except: a: study extinct organisms
b: Infer how organisms change over time
c: study living organisms
d: none of the above

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.

In what part of the body does the most muscle activity happen?

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give