In human primates, the most rapid period of brain development occurs
a. several months after birth.
b. during adolescence.
c. before birth.
d. within the first five years after birth.
e. during early adulthood.
Question 2
The basic primate social unit
a. is the mother and infant.
b. is the father and infant.
c. is the male and female.
d. are sibling relationships.
e. is one male and several females.
