23 h 58 min, 2 janv. 2002 ans - baby starts to hear
Description:
during the 16 weeks of pregnancy the baby starts to grow ears on the side of its head. in this process the inner ear connects with theneurons.the brain is responsible for processing sound.
Ajouté au bande de temps:
Date:
23 h 58 min, 2 janv. 2002 ans
Maintenaint
~ Il y a 23 ans