How is Cytochrome C, which is an important enzyme in cellular respiration, used to provide evidence for evolution O sections of DNA are more similar in organism more closely related,
bones (homologous structures) are used for similar uses if the organisms are more closely related
organisms that are more closely related are found with similar embryonic structures.

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.