Reasoning: Write out your explanation here for how natural selection lead to the current adaptations of the Honeycreeper population. How does the evidence you listed support the claim you made for #1? Link #1 together with #2 in your explanation to make a good evidence supported argument.

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.