The spinal cord is the answer you are looking for.
1.75
2. Its the heart beat multiplied by the stroke volume.
3. 60 to 90 mililitires
4. Dilate
5.blood pressure
6.Wind sprints
True - Being socially healthy can result from being emotionally healthy
I think its B because Charlie is overweight and should start a exercise routine and diet but his caliper test doesn't make sense since his BMI is so high.