fill in the blank
Digestion starts in _____. The food is change into _____form. The _____ soften the food. The partially digested food enters the _____. It then goes to the _____. The food is further change into _____form in the _____ so that the _____ can carry it into different parts of the body. Undigested parts of the ______ are pushed into the ______, where they remain until the feces are expelled by _____​