Once Upon a Time... Life
1x08 Breathing
Air Date: 1987-11-01
Runtime: 26 minutes
Overview: Air bubbles travel from the nose to the lungs. In the swampy, mucus-filled areas, they meet the red blood cells that transport them around the body.
Air Date: 1987-11-01
Runtime: 26 minutes
Overview: Air bubbles travel from the nose to the lungs. In the swampy, mucus-filled areas, they meet the red blood cells that transport them around the body.
