What is a function of the spinal cord ? a. it allows the back to be flexible and move at different angles b. it the spine provide structural support for the body c. it transmits information between different parts of the nervous system d. it produces hormones to send chemical signals throughout the body

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes

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.

Witch theory suggests all living things are made up of cell or cells