An egg cell is fertilized by a sperm cell to form a diploid zygote. Where does this process occur?

What role do bacteria play in the carbon cycle

How does an angiosperm prevent self pollination

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.