A student has a hamburger, french fries, and soda for lunch. These foods must be changed by the digestive system in order to be used by the body. Which of the following describes the processes that occur during digestion as food enters the mouth and passes through the other organs of the digestive system?
Select one:
matter is only chemically changed during digestion
matter is both physically and chemically changed during digestion
matter is only physically changed during digestion
heat and thermal energy is created as a result of digestion
Answers: 3
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