Answer:
As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules
Explanation:
Anything except lung cancer if that makes sense, I don't know what your options are
Hope that helps feel free to ask me more questions.:)
Answer:
it gets your bodie immune to it
The answer to the question is B, Maintaing body tempaturd is an example