PDF chapter test TRY NOW

How is adolescence differ from childhood?
 
a. A young human below the age of complete physical development is called a/an __________.  
 
b. __________ is the period of life when the body changes, that leads to reproductive maturity.
c. __________ is the period of life from birth till \(12\ years\).
d. During __________ period, there are changes in height, weight, sex organs, brain structure and function, and muscle mass.