It seems that you are working on a quiz or exercise related to the digestive system. You have multiple choices for different statements. Here’s how to fill in the blanks based on common knowledge about the digestive system:
A. While in the stomach, food is broken down by powerful acids and turned into chyme.
B. The kidneys channel the waste-filled blood to the excretory system.
C. Which system prepares food for absorption into the bloodstream? Digestive system.
D. The pharynx forms the food substance into balls and then pushes it into the esophagus.
Feel free to ask if you need further clarification or help!