Answer:
The first one, the third one, and the last one.
Explanation:
Answer:
When you first put a piece of food in your mouth, it is first grinded by your teeth, then saliva comes in to help you break down your food, the more you chew the more digestive enzymes occur, these enzymes are extremely important, they help your body take in nutrients from what you eat. This is why it's important to chew your food thoroughly before you swallow,
Answer:
the cranial cavity
Explanation:
contains the most important organ, the brain
