Season
Season 1 Episode
- Season 1 The Planet Cell
- Season 1 Birth
- Season 1 The Body Sentinels
- Season 1 The Bone Marrow
- Season 1 The Blood
- Season 1 The Tiny Platelets
- Season 1 The Heart
- Season 1 Breathing
- Season 1 The Brain
- Season 1 The Neurones
- Season 1 The Eye
- Season 1 The Ear
- Season 1 The Skin
- Season 1 The Mouth and the Teeth
- Season 1 The Digestion
- Season 1 The Liver Factory
- Season 1 The Kidneys
- Season 1 The Lymphatic System
- Season 1 The Bones and the Skeleton
- Season 1 The Muscles and the Fat
- Season 1 Toxin Wars
- Season 1 The Vaccination
- Season 1 The Hormones
- Season 1 The Chain Of Life
- Season 1 Repairs and Changes
- Season 1 And life goes on...
Once Upon a Time... Life - Season 1 Episode 25 Repairs and Changes
7.82 26 minutes Pedrito is 8 years old and is tired after a long day. When he goes to bed, Teacher and his helpers observe the activity that continues during sleep.
