Explain the causes and symptoms of sickle cell anemia.

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 word can describe a person's gender identity? a) female b) intersexual c) asexual d) androgynous

Which of the following is not considered a lymph node function? to house immune cells to transport lymph to filter blood to fight infection