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Description: Observable, proportional changes in prenatal and postnatal periods of human development. Changes in overall physical appearance are slow but noticeable until the teens. ‘& VF, x l x {a , 1 ‘ 2 a” 2!! V V14 — — — — — 8—week 12—week newborn 2 years 5 years 13 years 22 years embryo embryo (puberty) Picture Stats: Views: 112 Filesize: 195.8kB Height: 695 Width: 1500 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47380 |