Answer:
Child- Newborn (0-30 days)
Infant (1mth- 1yr)
Toddler (1-4 yrs)
Primary school age (4- 12yrs) (This is also called prepubescence)
Elementary school age or middle childhood (4-8 yrs)
Preadolescence, preteen or late childhood (10-12 yrs)
Adolescence and puberty (12-20 yrs)
peripuberty (8-10yrs to 15-17 yrs)
Adult (21 to death)
Early aduly (21-39)
Middle adult (40- 59)
Senior citizen- advanced adult (60+)