Human digestive system

which one is the function of the digestive system?

• gas exchange

• absorption

• metabolism

• both matebolism and absorption

what's this organ?

• liver

• stomach

• intestin

• pancreas

the first organ in human digestive is :

• mouth

• liver

• throat

• oesophagus

Enzyme secrets from the liver

• amylase

• lipase

• protease

The organs associated with the digestive tract include ....