Why Do We Need Oxygen To Survive?
5:10
A complexa e surpreendente jornada do oxigênio no seu corpo - Enda Butler
3:22
Why Can't We Breathe Underwater?
3:28
Why Do We Breathe?
2:37
Does The Human Body Really Replace Itself Every 7 Years?
3:41
Why Are Your Eyes That Color?
3:47
How Does Laughter Work?
3:22
O que fazem os pulmões? — Emma Bryce
4:06