The arms of infants and toddlers often appear stubby in ...

[jlmhmf]

The arms of infants and toddlers often appear stubby in relationship to the size of their trunks. Which principle does this illustrate?
 
  a. cepahlocaudal
  b. proximodistal
  c. orthogenetic
  d. biogenetic

Question 2

At two months after conception, your head makes up half of your total body length, but at adulthood, it is only 12 to 13 of your height. Which principle does this illustrate?
 
  a. proximodistal
  b. biogenetic
  c. cephalocaudal
  d. orthogenetic

[gstein359]

Answer to Question 1

b

Answer to Question 2

c