According to the _____ principle, development starts globally and undifferentiated.
a. cephalocaudal
b. biogenetic
c. proximodistal
d. orthogenetic
Question 2
During the first year of life, the trunk grows the fastest. During the second year of life, the legs grow the fastest. Which principle does this illustrate?
a. proximodistal
b. orthogenetic
c. cephalocaudal
d. biogenetic