A) foods are physically broken down into smaller pieces!
your mouth brakes the food into small pieces and is the main part but chemical reaction also occurs,
the saliva in your mouth helps you swallow the food easily!
just imagine eating your food dry like doritos that will hurt! your saliva makes it a lot easier and painless!
Answer:
2.) histamine
1.) actually i don't know what number 1 is, all i know is number 2
A passive decision maker will feel pressured and anxious about making a decision so they will jump on the first available answer right or wrong to avoid thinking about the question
I hope this will help u! Iron and calcium