What are some ways that good bacteria the ecosystem?

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided

Moving down the ramp from 6 meters to

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.