Once Upon a Time... Life
Today we learn about the content of our bones, which is called bone marrow. The main part of red and white corpuscles and the platelets are being produced here. Young Pierrette doesn't feel so well one day and that's when she realizes how important those blood components are.
Genres
Enfants et Famille, Animation
TV-G
La plupart des parents jugeront ce programme approprié pour tous les âges.