Chapter 14

Question 1

Growth spurts

Answer 1

Physical and sexual maturation
9-11 kg weight gain in 1 year
Increased fat for girls, muscle for boys.
Girls hit it before boys

Question 2

Sexual maturation

Answer 2

Changes in primary and secondary sex characteristics
Menarche onset 11-12 years
Spermarche onset 13-14 years (spontaneous ejaculation)