'The ptyalin in this watery fluid breaks down starches into maltose, a sugar'
Saliva
DIGESTION: The ptyalin in this watery fluid breaks down starches into maltose, a sugar
The ptyalin in this watery fluid breaks down starches into maltose, a sugar
The ptyalin in this watery fluid breaks down starches into maltose, a sugar
DIGESTION
Saliva
DIGESTION