Joan feels she has to check the door seven times before leaving her apartment to make sure it is locked. she also has to turn the water on and off seven times after washing her face. what kind of disorder does she have.

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

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

Christopher came down with chicken pox after spending time in his child’s day care. the chicken pox represents what link in the chain of transmission in this scenario?