Digestive The human body is made up of several systems. The mouth, esophagus, and stomach are all parts of which system?

And the 1 points are for this 20 if i get all 3 of them correctly i will give you brainliest and if you only get all 3 i will give you brainliest including a and the rating will be 5 and if you get those i will give you 20 points