What drug can cause rotten teeth and mouth cancer

What is the most common blood type in the u. s.?

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

Which one is not a part of the base of the cranial cavity? a. scala anterior b. scala media c. scala lateralis d. scala posterior