'It's the wavelike muscular contractions of the alimentary canal that move food through the digestive system'
peristalsis
SCIENCE & NATURE: Its the wavelike muscular contractions of the alimentary canal that move food through the digestive system
It's the wavelike muscular contractions of the alimentary canal that move food through the digestive system
It's the wavelike muscular contractions of the alimentary canal that move food through the digestive system
SCIENCE & NATURE
peristalsis
SCIENCE & NATURE