7.What is the main function of the heart? to exchange gases
to remove waste materials from the body
to produce red blood cells
to move blood through the body

Which of these gives the best indication that a health service is based on pseudoscience? a. the service is not controversial and is supervised by medical professionals. b. the service has been extensively researched,has a high success rate,and is expensive c. the service is inexpensive, is based on research, and has been around for a long time d. the service has not been researched and is expensive