What is ferilization?
a) the moment a zygote becomes an embryo
b) the moment an embryo becomes a fetus
c) the moment a sperm unites with an egg
d) the moment the baby is born

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