Test 10 Objective 5

1.  Mechanical and chemical digestion.
                          http://wiki.answers.com/Q/What_are_the_two_parts_of_digestion

2.  Mechanical digestion is when you chew up food to break it down and chemical digestion is when acids break down the food.
                                http://wiki.answers.com/Q/Compare_mechanical_digestive_to_chemical_digestion

3.  Well mechanical digestion would be a lot harder so the acids in your stomach would have to break down more food.

4. stomach-1, 2 mouth-7, intestine-8
             http://wiki.answers.com/Q/Why_are_the_differences_in_the_pH_of_the_mouth_stomach_and_small_intestine_important_for_digestion

5.  Your mouth needs to be able to soften food and break it down some. Your stomach needs to be able to be able to break food down enough to make energy.  Your small intestine needs to bring waste to the large intestine.
http://wiki.answers.com/Q/Why_are_the_differences_in_the_pH_of_the_mouth_stomach_and_small_intestine_important_for_digestion