Studies of human childbirth indicate that the infant mortality rate in most countries is least associated with:
a. the low social status of women
b. infectious diseases
c. size of birth canal and difficulty of human childbirth
d. malnutrition
Question 2
The Mayan city of Tikal may have played an important role as:
a. the capital of Mexico.
b. a university center for astronomers and mathematicians.
c. an important stop on an overland trade route.
d. the first industrial center for the production of wheat.
e. the place where swords were manufactured to fight the Aztecs.