Your circulatory and respiratory systems
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:
seven factors that affecting death are
1. age ,sex , disease, heredity, nutritional lever, health facility,and services and health education...
Oxygen rich blood to your muscles into the heart pumping and function
