In which form of health insurance arrangement are participants free to choose the doctor and hospital they prefer?

a. medicare
b. health maintenance organizations (hmo)
c. medicaid
d. preferred provider organizations (ppo)

Which two levels of the spine that can undergo flexion and extension?

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare

You should never drive a car if you are a.taking cold medication b. suffering from the flu c. drinking alcohol d. all the above