When skeletal ages are examined at birth, __________.
A) the sexes differ by about 4 to 6 weeks
B) boys are considerably ahead of girls
C) European-American children tend to be ahead of African-American children
D) there are no discernable differences between boys and girls
Question 2
The best estimate of a childs physical maturity is __________.
A) chronological age
B) skeletal age
C) birth weight
D) arm span