Researchers are investigating processes that happen during digestion. Which answer choice describes only a physical change durin
g digestion?
Hydrochloric acid in the stomach breaks down proteins.
Chewing in the mouth breaks food into small pieces.
Enzymes in saliva start the digestion of starches before food is swallowed.
Bacteria in the intestines convert dietary fiber into fats.
1 answer:
Answer:
it would be the second one because chewing gum is a phyical change butut when the food goes into the dygestive system is a chemical change
Explanation:
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